Zephyr, Uplift Bygone Dust Cloudsward

Patch: 3.5 · Chapter: Before Their Deaths · Mission 04 of 7Previous: Wanderer, Decipher the Waxen Imprints · Next: Nectar, Saturate the Hollow Treecore Wiki: https://honkai-star-rail.fandom.com/wiki/Zephyr,_Uplift_Bygone_Dust_Cloudsward

Official summary

A millennium had passed in Amphoreus, and Okhema had fallen into ruins. Guided by the memories that Cyrene left behind, you witnessed the struggles between the Chrysos Heirs you once knew and Lygus. They sacrificed themselves in this arduous struggle, passing on their mission of saving the world to you. Finally, you took up Cyrene's ceremonial blade, and with the blessing of these heroes, you returned across the rainbow bridge to Styxia — the city-state that leads to the heart of the Vortex.

Synopsis

This mission is almost entirely a guided walk through a "maze of Time" — a curated replay of a thousand years of history that the Trailblazer slept through. Cyrene narrates and animates "Fragments of Recollection" (frozen memory-scenes) so the Trailblazer can learn how the Chrysos Heirs of this cycle lived, fought Lygus, and died to prepare the road for the Deliverer's return. Everything the Trailblazer witnesses inside the maze is a past event of the just-elapsed cycle; the only "now" is the Trailblazer standing in a ruined, dark Okhema at the maze's threshold and, at the end, taking up the ceremonial blade.

Arrival — a ruined Okhema (the present)

An opening title card sets the frame: "33,550,337th eternal recurrence. Light Calendar 4931." This is the new-and-final cycle that Phainon initiated at the end of 3.4 by sending the Trailblazer (and Cyrene) back to the origin of Time — and a full millennium of it has already run its course while the Trailblazer was "away."

The Trailblazer wakes in the shattered holy city. No one is present; the Dawn Device is dark; Okhema is a ruin. Their first fear: "Am I... too late?"

The Herta's message (optional Fragment). A pre-recorded video message from The Herta plays. She reports that thanks to "that little empress" Cerydra granting access to the Ultimate Protocol, she and Screwllum ("Screwy") rewrote the progress of "Era Nova" from outside while the Trailblazer was gone. Her plain-language briefing:

• Amphoreus has raced down the Path of Destruction so long that Era Nova's underlying logic is fully corrupted; they could only overwrite a small portion.
• Framed as a progress bar: Irontomb's completion is currently at 99.98%, and the rewritten Era Nova can push it back to roughly 96–97%.
• The Scepter's internal structure is dangerously unstable. The rational move is to run another extrapolation at once to buy the cosmos time — the Scepter's protected nodes are most vulnerable only during the reset.
• She instructs the Trailblazer: deal with "that troubling old Intellitron" (Lygus), then immediately start the next cycle of extrapolation. "It's all up to you now, 'Deliverer.'"

Cyrene returns. Investigating the Chronocognitive Anchor, the Trailblazer hears a familiar voice — Cyrene — welcoming them back after "such a long, long time." She promises to lead the Trailblazer through the pages of Time so they can "hear the words everyone left for you," telling "the story of this thousand-year journey" so that "it won't just be my memories alone." (The Trailblazer notices Cyrene cannot hear them respond — an early hint that this is a recording, not a reunion.)

Memory I — "Uncover the past long buried in dust"

Cyrene activates a Fragment: Aglaea (here again the Goldweaver) and Tribbie in council, roughly two centuries after "the Deliverer's fall." Their situation:

• To hold back Lygus, they were forced to return three Coreflames — Law, Romance, and Ocean. Even so the tide is losing: Terravox has fallen, "the two geniuses" have vanished without a trace [?] (most likely Herta and Screwllum, who "rewrote" Era Nova and left), and Cerydra has "embraced her fate." Aglaea's grim conclusion: "'Era Nova' will come, and Amphoreus will fall into the Destruction."
• The key to rewriting the ending again lies in the Coreflame of Worldbearing (Kephale's). Per "the instructions left behind by those two geniuses," it must reach the Deliverer's hands "no matter the cost" — while being hidden and Lygus stalled.

Hope arrives through Cyrene ("Reney"): she has had a recurring dream, the Titan's voice clearer than ever, saying:

"Pass the flame into the future."

Aglaea reads this as a prophecy from Oronyx — the Time Titan choosing, this cycle, to side with humanity and hide one of her kin's Coreflames. "It seems Amphoreus' fate isn't sealed just yet." Tribbie affirms that history has changed: this time, humans and Titans alike are giving everything to keep the world alive, and "a relay across the ages is finally about to begin." Cipher breaks in with the threat: Ladon's army is at the gates, its commander Lycurgus (Lygus) right outside Okhema.

Cyrene's narration dates the backdrop: in Light Calendar 3960, Cerydra — under pretense of a campaign against Phagousa — sacrificed 500 Chrysos Heirs to complete the Trial of Law, a tragedy that shook all Amphoreus. That same year Cerydra the Imperator was assassinated, and Aglaea the Goldweaver took command, beginning humanity's second Flame-Chase Journey, "a path hanging by a thread."

Memory II — "Etch into memory the chronicles written in blood" (Aglaea's death)

The Fragment shows Lygus in the ruined Marmoreal Palace, mocking the "Eternal Holy City." He demands: "Where is Kephale's Coreflame?" Aglaea refuses and reminds him he cannot kill the Chrysos Heirs named in the prophecy because of Law. Lygus concedes he has never denied that — which is precisely why he will torture them and "use your scalding golden blood to baptize the masses," starting with "blind and foolish Lady Goldweaver."

Castorice offers to stay in Aglaea's place, but Aglaea insists she must be the one:

"His conspiracy won't succeed, because Romance is ready to make good on their promise to weave an indestructible armor for Amphoreus... Its name is 'solidarity.'" — Aglaea, Etched in Memory

She charges Castorice to escape and carry word of her death to those still fighting, so that — "just as the Imperator lit the torch of resistance with her death" — Aglaea's passing will make the flame everlasting, to be guided to the Deliverer.

Cyrene narrates the outcome: fifty years later, Lygus led his forces to Okhema again, charged in, and razed the Marmoreal Palace — remembered as "The Third Siege of Okhema." Ninety thousand died that day, including their leader Aglaea.

Memory III — "Pursue the shadows shrouded in secrecy" (Castorice's departure; Styxia's secret path)

At the threshold of this memory, a lingering echo of Castorice tells the Trailblazer: "When the frost melts and the snows give way, the flowers will bloom again. You'll find me there."

The Fragment shows Cipher distraught that Castorice ("Princess Homebody") is leaving for Styxia and never coming back. Tribbie explains that Castorice's plan is not "relocation" — Okhema remains humanity's refuge. Rather, Castorice, Hysilens, and Tribbie will throw themselves away to lay "the path to the future," so that when the Deliverer returns they will have a clear road to the site of Era Nova:

• Styxia sits "where death meets the ocean." Combining the powers of Ocean and Passage, they can summon a current that leads to the Vortex of Genesis.
• The Demigod of Death will then forever guard that secret path until the Deliverer returns.

Because everyone knows Lygus will eventually target the Vortex, Tribbie says, that is exactly why they must do this. She also dispatches Cipher to Castrum Kremnos to "by any means necessary, forge an alliance with Strife," noting the prophesied crown prince has already been born and will become Okhema's new defender after they leave. Cipher reveals she has just returned from Kremnos, a step ahead of the news — as Trinnon cries out that something is streaking toward Okhema: a spear. Cipher recognizes it: "It's the Kremnoans. Their king's already here."

Cyrene narrates: protected by the demigods Tribios and Cifera, Okhema barely endured wave after wave. Castorice chose Styxia as the last resort and completed the Trial of Death, causing the stagnant waters of the River of Souls to recede. Soon after, Tribios departed on a long journey; that same year the Kremnoan king Eurypon and his son, prince Mydeimos, joined the alliance to defend the holy city.

Memory IV — "Witness the fearless feats" (Mydei's Soul-Rending)

Passing Trianne and Trinnon (Tribbie bids the Trailblazer "see you tomorrow!"), the Trailblazer reaches the Fragment of Mydei's self-sacrifice. Trianne frets that it will hurt terribly; Mydei answers that pain can torment but never destroy him — and reminds her she thought the same when she leapt from the cliff through the Gate of Infinity. He gives the order:

"Split my soul into five pieces, forge me an immortal vessel... Let the blade of Strife hang forever overhead, locked in battle with their enemies to the world's bitter end!" — Mydei, Etched in Memory

Mydei frames it as redemption for his people: in this life the Kremnoans "no longer have to drown in false guidance," Kremnos "has washed the blood off its fate," and Amphoreus "no longer needs a god named Strife" — so he shatters the old laws and turns the Lance of Fury into a weapon that protects the world. He notes the Soul-Rending Ceremony was counsel from a scholar of the Grove of Epiphany, Anaxagoras, among the Seven Sages arriving to join the resistance, and asks Trianne to watch over him and "carry on this everlasting flame."

Cyrene narrates: through Anaxagoras's ritual, the Demigod of Strife split his soul into five — Courage, Honor, Tenacity, Sacrifice, and Reason — each sealed in blood crystal and cast into battle. The people held a ten-day funeral for their fallen God-King, and his sacrifice bought humanity two hundred years of peace.

Memory V — "Resume the unfulfilled cause" (Anaxa and Cipher trap Lygus)

Echoes of Mydei ("My blood will pave the road ahead for you") and Trianne ("Little Gray, see you tomorrow!") mark the way. The Fragment shows Anaxa (Anaxagoras) and Cipher — "Reason and Trickery" — planning the last battle known to history. The scheme:

• Cipher will impersonate the Deliverer to bait Lygus, who has just discovered Okhema has been "an empty shell for the past fifty years" and is enraged — and rage, Cipher notes, "blinds even the brightest minds." Once Lygus storms the Council to confront the fake Deliverer, Anaxa's alchemy triggers "with a BOOM" to cage him.
• Anaxa's two conditions for going "all in": (1) shift the battlefield to the Vortex of Genesis — cut off from the world, the best prison in Amphoreus, and the most convincing place for the Trailblazer to reappear; (2) loop in Hysilens, the Demigod of Ocean. Anaxa will transmute himself into a Philosopher's Stone embedded in the formula; when the moment comes, Hysilens must shatter him and scatter the stone's ashes into the ocean within the Vortex. (He withholds what the formula actually does — "that would spoil the climax.")

Anaxa notes Hyacine has by now completed the Sky people's ritual, and that "since that Theoros loves a good performance as much as I do," they will make sure Lygus enjoys the show. How the Deliverer will actually complete Era Nova afterward "will no longer be our concern."

Cyrene narrates: it was "the last battle known to the world, initiated by two demigods least suited for war." In the end, Reason and Trickery kept their word — at the cost of their lives, they sealed Lygus within the Vortex of Genesis, where he remains to this day.

Memory VI — "Continue the long journey" (Hyacine passes the last baton; Cyrene's true role revealed)

The final Fragment is Hyacine, alone in a "dead quiet" Okhema. Cipher's lie — "Okhema will stand eternal" — has crumbled, but Hyacine is at peace: everyone has fulfilled their purpose. She confirms the endgame mechanism: when the Deliverer returns, wherever they are, "Sky will turn clear and a rainbow bridge will rise," carrying them to the final battleground. She passes "the final baton of fate" to Cyrene — then corrects herself, since it was Cyrene and the Trailblazer who "lit the first spark of this journey" in the first place.

Cyrene then addresses the Trailblazer directly and reveals the deepest layer. She confirms outright that this is not reality but a "maze of Time," and explains her own place in the relay:

"As the last link in the relay, I will return to the Temple of the Three Fates, tell Oronyx all of our stories, and bottle every page we've written into the little flask of 'memories'... And then... may it set sail in peace... Drift down the river of time along with the Coreflame of Worldbearing, reach [the Trailblazer]'s side, and lead you back to Amphoreus." — Cyrene

The design: even though this cycle has no demigod of Time, "Time has always stood on humanity's side" — this is how they guarantee that "Era Nova" cannot occur before the Trailblazer returns, and how Cyrene safely entrusts the completed final Flame-Chase Journey to the Deliverer's heart. "The new world will be born from your 'memories,' and the protagonist of this story mustn't be absent." She recalls how Phainon sent them both back to the beginning and they were separated, yet she returned to the Trailblazer carrying everything they had lived — that, she says, is what memory is: it wears down in the river of time but never truly leaves. She resolves to let "the 33,550,337th Flame-Chase Journey become part of [the Trailblazer], too."

She then gives the marching orders that carry into the next mission: head to Styxia, find the Vortex's entrance guarded by the Demigod of Ocean, and charge toward the final battlefield. "I'll be with you. All of us will. Even Phainon. We'll stand with the 'Deliverer.'"

Coda — "Take the ceremonial blade which carries time's wisdom"

A last memory-fragment shows Hyacine and Cyrene at the moment the baton was handed over. Hyacine worries: what if Cyrene waits and waits but the hero never comes? Cyrene is certain he/she will return — "it took 33 million cycles for [the Trailblazer] to arrive in our world... What's a few moments more?" In the closing cutscene, each fallen Heir blesses the Trailblazer with their authority as they take up the blade:

Hyacine: Sky shall rain rays of dawn for you... Aglaea: May Romance be with you on your journey... Anaxa: And Reason grant you enlightenment... Mydei: Let Strife bestow you with inspiration... Cipher: Trickery ensure your success... Castorice: Allow Death to protect your soul... Tribios: And at last, let Passage point the way forward... Cyrene: While Time... Will remember Trailblaze's journey.

The Trailblazer draws Cyrene's ceremonial blade — the flask of Time's wisdom made weapon — and (per the official summary) crosses the risen rainbow bridge back to Styxia, the city-state that opens onto the heart of the Vortex.

Key characters

• Trailblazer — Returns from the origin of Time to a ruined Okhema a millennium later. Passive witness for almost the whole mission; at the end receives every Heir's blessing and takes up Cyrene's ceremonial blade, bound for Styxia and the final battlefield.
• Cyrene — Guide and architect of the "maze of Time." Reveals she is the final link in a thousand-year relay: she will return to the Temple of the Three Fates, bottle all the cycle's memories with Oronyx, and send them (plus the Coreflame of Worldbearing) down the river of time to bring the Trailblazer back — ensuring Era Nova cannot complete before the Deliverer arrives.
• The Herta — In a pre-recorded message, reports that she and Screwllum rewrote Era Nova via Cerydra's Ultimate Protocol access, pushing Irontomb's progress from 99.98% back toward ~96–97%, and instructs the Trailblazer to defeat Lygus and immediately trigger the next extrapolation (the Scepter is most vulnerable during reset).
• Aglaea (the Goldweaver) — This cycle's second leader after Cerydra's assassination. Chooses to die at Lygus's hands to make the "armor of solidarity" everlasting; killed in the Third Siege of Okhema (~90,000 dead).
• Tribbie / Tribios — Co-plans the millennium-long relay; explains Castorice's Styxia gambit; departs on "a long journey" after helping shield Okhema.
• Castorice — Leaves for Styxia and completes the Trial of Death, using Ocean + Passage to open a hidden current to the Vortex and standing as the Demigod of Death who forever guards that secret path.
• Mydei / Mydeimos — This cycle's redeemed Kremnoan prince. Undergoes the Soul-Rending Ceremony (soul split into five virtues), remaking Strife into a protector and buying two hundred years of peace.
• Anaxagoras (Anaxa) — Advised Mydei's Soul-Rending; partners with Cipher for the final trap, transmuting himself into a Philosopher's Stone to help seal Lygus in the Vortex at the cost of his life.
• Cipher / Cifera — Impersonates the Deliverer to bait Lygus into the Council; alongside Anaxa, seals Lygus within the Vortex of Genesis.
• Hyacine — Completes the Sky people's rainbow-bridge ritual that will carry the returning Deliverer to the final battleground; passes the "last baton" to Cyrene.
• Lygus / Lycurgus — The relentless antagonist across the millennium: commander of Ladon's army, razer of the Marmoreal Palace, hunter of Kephale's Coreflame — finally sealed within the Vortex of Genesis, where he still is at mission's start.
• Cerydra — This cycle's Imperator: sacrificed 500 Heirs for the Trial of Law (Light Calendar 3960), then was assassinated; earlier "embraced her fate" and granted Herta and Screwllum the Ultimate Protocol access that let them rewrite Era Nova.
• Hysilens — The Demigod of Ocean who joins the final act, shattering Anaxa's Philosopher's Stone into the Vortex's ocean; earlier helps open Styxia's path with Castorice and Tribbie.

Lore notes

• Cycle count = 33,550,337th. This mission is set in the new cycle Phainon started at the end of 3.4 (the prior/"final" one being #33,550,336). Cyrene repeatedly calls it "the 33,550,337th Flame-Chase Journey." Date: Light Calendar 4931 — the same "end of cycle" year seen elsewhere in the arc.
• History has changed this time. Unlike the doomed original Flame-Chase, in this cycle Titans cooperate with humanity: Oronyx sides with humans and hides a kin's Coreflame, her prophecy delivered through Cyrene's dreams — "Pass the flame into the future." This is the mechanism that makes the whole relay possible.
• The "maze of Time." The entire mission is a memory-replay, not present events. Cyrene explicitly confirms it "isn't reality, but a maze of Time." Timeline note: Aglaea's death, Castorice's Styxia trial, Mydei's Soul-Rending, and the sealing of Lygus are all past events of the elapsed thousand years, narrated in order.
• Era Nova progress bar / Irontomb. First concrete numbers on the doomsday clock: Irontomb at 99.98%, rewound to ~96–97% by Herta and Screwllum's external overwrite. The Scepter's protected nodes are "most vulnerable only during the reset," motivating the plan to trigger another extrapolation. Directly advances the 3.4 Irontomb/Nanook thread.
• The relay of sacrifice. A structural motif: each fallen Heir's death "passes the flame" to the next, deliberately mirroring the Imperator's torch — Cerydra → Aglaea → (Castorice/Tribbie/Hysilens lay the Styxia path) → Mydei → Anaxa & Cipher → Hyacine → Cyrene → the Trailblazer.
• Cyrene's true function, restated. She "bottles" the cycle's memories with Oronyx at the Temple of the Three Fates and sends them, with the Coreflame of Worldbearing, down the river of time to retrieve the Trailblazer — "just like the first time we met." This is why the world can have no demigod of Time yet still have Time "on humanity's side." Connects to 3.4's revelation that Cyrene's soul becomes the Time-reset ceremonial blade.
• The ceremonial blade. The Trailblazer physically takes up Cyrene's ceremonial blade ("which carries time's wisdom") — the tangible payoff of 3.4's "ceremonial blade" mechanism, now the Deliverer's weapon.
• Mydei's five-virtue Soul-Rending. Mydei splits his soul into Courage, Honor, Tenacity, Sacrifice, and Reason — a deliberate inversion/echo of 3.0's original Nikador, whose sealed soul was split into five virtues (with the missing "Reason" = Gnaeus). Here a redeemed Strife god does it willingly to guard the world, "washing the blood off" Kremnos's fate. Advised by Anaxa.
• Styxia's hidden current. Ocean (Hysilens/Phagousa) + Passage (Tribbie/Janus) summon a current from Styxia ("where death meets the ocean") to the Vortex of Genesis; the Demigod of Death guards it. Sets up the next mission's route to Styxia and the Vortex.
• Lygus's constraint. Confirmed: Law forbids Lygus from killing the prophesied Chrysos Heirs — hence his strategy of torturing them and turning the citizenry against them rather than direct slaughter. Explains why the Heirs die by choice/self-sacrifice rather than being simply cut down.
• Third Siege of Okhema. Named battle: Lygus razes the Marmoreal Palace ~50 years after threatening Aglaea; ~90,000 dead, Aglaea among them.
• Connections:
  • 3.4 — Directly continues the Screwllum/Herta external-agent plan (Chronocognitive Anchor, Ultimate Protocol, rewriting Era Nova) and the Irontomb/Nanook doomsday. The ceremonial-blade and "Cyrene erases Time" mechanics pay off here.
  • 3.4 — Terravox (Georios's Titankin) "has fallen" this cycle; Cerydra (first-Flame-Chase Imperator in memory) is now an active leader who allies with the outside.
  • 3.2 / 3.3 — Reprises and re-sequences the cast's deaths in this altered cycle: Aglaea's leadership and death, Castorice's Trial of Death and River-of-Souls recession, Cipher's "eternal Okhema" lie, Hyacine's rainbow-bridge Skyward rite.
  • 3.1 — Hysilens (named "Dux Gladiorum" in the first Flame-Chase memory) appears here as this cycle's living Demigod of Ocean.
• Open questions:
  • [?] Who are "the two geniuses" who "vanished without a trace" after leaving instructions to route the Worldbearing Coreflame to the Deliverer? Most consistent reading: Herta and Screwllum (the outsiders who "rewrote Era Nova" and departed), but the mission never names them.
  • [?] Exactly what Anaxa's withheld alchemical formula does beyond caging Lygus — deliberately left as "the climax" — and how it interacts with the Deliverer's eventual completion of Era Nova.
  • [?] The reconciliation of the cycle number (33,550,337th here vs. the "final" 33,550,336th of 3.4) — whether this is simply the successor cycle or carries additional significance.

Sources

• Zephyr, Uplift Bygone Dust Cloudsward — HSR Wiki

Hindsight (full arc)

• Foreshadowing — the memory-flask: Cyrene bottling "every page we've written" with Oronyx and sending it down Time with the Coreflame pays off in 3.6/3.7 — this is As I've Written working as Amphoreus's encryption key / data terminal, Cyrene burying each cycle's memories in the Great Tomb so the Scepter reverts and the gaze stays on the world.
• Foreshadowing — Anaxa's Stone: Anaxa transmuting himself into a Philosopher's Stone to seal Lygus pays off in 3.6 — the Stone lodged in the caged Zandar's mind springs the final trap.
• Reread with the reveal: "this cycle has no demigod of Time, [but] Time has always stood on humanity's side" — because Cyrene is Time's substitute (the ceremonial-blade reset); 3.7 confirms the "gaze back on the world" was always hers, Fuli being unborn.
• Reread with the reveal — Terravox: the maze reports Terravox "has fallen" (tombstone d. 3961), but the full arc shows Terravox actually evaded death and is alive at LC 4931, bequeathing the Earth Coreflame to Dan Heng (3.6). The maze's record is the in-world presumed-death, not the truth.
• [?] resolved: "the two geniuses who vanished without a trace" → Herta and Screwllum, who rewrote Era Nova from outside and withdrew (confirmed by Herta's own recorded message in this mission).