A Rekviem for the Underworld in Genshin Impact 7.1 (Full Walkthrough)

A Rekviem for the Underworld is Chapter VII: Act IV of the Archon Quest line, and it brings Snezhnaya’s plan against Ronova, the Ruler of Death, to a head. It landed with Version 7.1 on September 23, 2026, and it stays permanently available once you meet the requirements. The act splits into three quests — Delusion, Etched in Time, and Black Feathers Scattered at Parting — and moves from a controlled lab test into a multi-phase fight against a Shade.

Quick answer: Finish Chapter VII: Act III first, then play Delusion, Etched in Time, and Black Feathers Scattered at Parting in order. A full run takes about 2 hours 25 minutes to 3 hours 15 minutes.

Everything past this point spoils the story, including how the Ronova confrontation ends.

How to unlock A Rekviem for the Underworld

You must clear the preceding act before this one appears in your quest menu; the game checks both requirements at the same time.

Adventure Rank 18 or above.
Complete Chapter VII: Act III, White Night, Like a Dream Upon Waking.
You can use Focused Experience Mode to jump ahead even if your Chapter VII progress is behind.

Archon Quest Act IV Unlocks — The quest menu listing Chapter VII: Act IV once it unlocks. Shown at 10:41 in BranOnline’s video. Image: HoYoverse

Quest length and rewards

Quest	Speedrun	Normal pace
Delusion	10–15 mins	20–30 mins
Etched in Time	35–40 mins	45 mins–1 hr
Black Feathers Scattered at Parting	50 mins–1 hr	1 hr 20 mins–1 hr 45 mins
Full act	1 hr 35 mins–1 hr 55 mins	2 hrs 25 mins–3 hrs 15 mins

Speedrun times assume auto dialogue and mashing through text. The longer times include the optional NPC chats after cutscenes. The Delusion quest log lists 60,450 Mora, 5 Primogems, and 9 Hero’s Wit, and clearing all of Version 7.1’s Archon Quest content pays out 620 Primogems in total.

Completing the newest Archon Quest opens the sixth anniversary selection, letting you claim one event-exclusive 5-star character from the lineup for free at any point in Version 7.1.

Delusion: the three experiment rounds

Exit Podvorye Restaurant and set your destination to Glupov to meet The Jester. Use the waypoint closest to Snezhnograd, then follow the marker to the palace steps.

Snezhnaya Map Navigation — The Snezhnaya map showing Snezhnograd and the surrounding Teleport Waypoints. Shown at 00:05 in WoW Quests’s video. Image: HoYoverse

Speak with Pierro and Arlecchino. They say the new Delusion model harnesses the Authority of Death, with the Traveler on hand to purify things if the trial fails. Pierro also gives you precise instructions for the battlefield in private; they become important near the act’s end.

18:27 — The Jester briefing Paimon and the Traveler before the experiment. Shown at 18:35 in Ritz_XD’s video. Image: HoYoverse

Enter the Delusion experiment site inside the Armory Palace and talk to the research staff at the reception desk. Then use the elevator to reach the Combat Upgrade Laboratory.

Begin round one, controlling Arlecchino against Sandrone’s test units while Delusion output is at 20%. Defeat the units, then wait until the results are confirmed.

Start the second round with output at 50%. A spike in Abyssal fluctuations during the battle forces a cleanup, pausing the test before it restarts and the data is recorded.

Start the third round with output at its maximum. A spectral anomaly appears, raising the Abyssal Influence Index to 99%; Arlecchino then collapses.

Take control of the Traveler and purge the abyssal corrosion. The researcher verifies that vital signs have normalized and Delusion production is halted without lasting lifespan loss, bringing the quest to a close.

Quest Completion: Delusion — The Delusion Quest Completed banner after Arlecchino is stabilized. Shown at 27:12 in WoW Quests’s video. Image: HoYoverse

Hardware is not responsible for the instability. Along with Death, the new Delusion drew on a second authority tied to the unstudied Crimson Moon; this caused the hallucinations in the maximum-output trial.

Etched in Time: the Mirror of Remembrance and the Harbinger vote

Dialogue and elevator trips make up nearly the whole quest. The Armory Palace elevator serves four stops, and the quest takes you to three: the Mirror of Remembrance, the Combat Upgrade Laboratory, and the Sealed-Off Archive.

Ride up to the Mirror of Remembrance, then give Pierro the experiment results. He is stationed at the consoles before the floating prism.

Touch the Mirror of Remembrance. The projection covers Rhinedottir confronting Ronova, then a much older scene of a young Pierro — Eftirvit — and Hroptatyr, The Wise, at the Universitas Magistrorum with Professor Mimameith.

Rhinedottir & Ronova Memory Echo — Ronova explaining how Celestia monitors actions while it sleeps. Shown at 44:46 in BranOnline’s video. Image: HoYoverse

Once back in the real world, ask Pierro about Hroptatyr. Pierro says that every active Harbinger must be present and vote unanimously before a national-level hazard can be unsealed; he then goes to assemble them.

Ride the elevator to the Sealed-Off Archive and wait for the six Harbingers to gather. Childe arrives ahead of Pulcinella, Sandrone, Pantalone, and Arlecchino.

57:33 — Waiting by the elevator for every Harbinger to gather at the Sealed-Off Archive. Shown at 57:51 in Ritz_XD’s video. Image: HoYoverse

Talk to Pierro and watch the vote. Every Harbinger present votes in favor, the golden gates open, and you can read The Wise’s notes on the central dais. The heading has been crossed out and rewritten from “The Blessing of Immortality” to “The Curse of Immortality”.

Find the engraved prism hidden in the book, disguised as a photograph, and use it to enter the etched memories. In this stylized Khaenri’ah, you can speak with Hroptatyr’s projection, including about the Traveler’s twin. Finish by talking to the Harbingers present. Pierro then discloses that he summoned Paimon from Celestia at the very moment Hroptatyr summoned the Traveler’s sibling.

Black Feathers Scattered at Parting: the road to Ronova

Go to Marionette’s tea party at a Snezhnograd cafe. Sandrone, Arlecchino, and Paimon share a calm moment there before the act takes a turn.

Head back to Podvorye Restaurant to rest. Vodyanitsa is having tea there; following her flashback to Lishnaya at the theater, she gives you Vodyanitsa’s Special Notebook, containing schedule notes and theater tickets.

Make your way to Rankova Zorya. Dainsleif is on the railway station platform, while Mitya supervises an equipment shipment intended to turn the theater into an afterlife laboratory.

Speak with Mitya. In the middle of your conversation, Ronova emerges from a crimson vortex and lands a devastating opening blow, beginning the fight.

Ronova boss fight mechanics

The encounter identifies the boss as Ronova, Arbiter of the Heavenly Principles, subtitled Paralogism’s Outcast. Rather than relying on an ordinary health bar, the battle centers on your “Life” being drained away. Your party is assigned for these sections by the quest, so no particular roster is needed.

Dodge attacks, or “Death” erodes your “Life.”
When Torrent of Death strikes, approach the displaced “Life” and collect it again.
Vesna joins the trial party, and her “Authority of Life” is closely linked to the life-drain mechanic.

Escape the afterlife

Ronova kills the party at the end of the first phase, and the objective changes to “Escape the afterlife.” This is a platforming stretch with a beam puzzle rather than a fight. Line up the Prime Ice Construct: Link Mechanism crystals to open the grand gateway, and pick up the memory prompts along the route. Mondstadt, Liyue, Inazuma, Sumeru, Fontaine, and Natlan each grant a line of resolve before you wake up on the battlefield.

Defeat Ronova after she is stripped of her power

The revival is the snare Pierro warned about earlier. As the battle continues, the Tsaritsa keeps Rhinedottir occupied at Zapolyarny Palace and stretches time in the tea room with the six Gnoses, letting Celestia’s authorized period for Ronova run out unnoticed. Pierro and Dainsleif arrive carrying the completed Eye of the Fatui; its spear strikes Ronova, and Celestia withdraws her Authority of Death. Defeat her in the weakened phase, speak with your companions, and then talk to Paimon.

How to confirm the act is complete

Once the final conversation with Paimon ends, a full-screen banner reads “Chapter VII: Act IV Complete — A Rekviem for the Underworld — Quest Completed,” and a “To be continued” card follows. No objectives remain for the act in your quest log, and you can now claim the anniversary free 5-star selection. If either of those is missing, you still have companion or Paimon dialogue left to clear.

Rather than tying everything up, the final scene points toward what comes next. Ronova strikes a celestial pillar, summons Eitr of Hyperborea out of the Shadow Realm, and channels it into the Skyfrost Nail above eastern Snezhnaya. In response, celestial nails shine across Mondstadt, Liyue, Inazuma, Sumeru, Natlan, and Snezhnaya, while star-shaped rifts appear in the sky. You can also challenge Ronova again outside the story, as she is now a Weekly Boss.