Paradise’s 22nd White Bunny is Duet Night Abyss’s September 8, 2026 update, adding a new story chapter and exploration area, the Pyro character Falsi, three weapons rolling out in stages, and several time-limited outfit events. The main story and Mount Arcano content are permanent; cosmetics have event deadlines, while weapon availability and free acquisition routes depend on the item.
When did the update launch?
The official Steam notice scheduled maintenance for September 8, 2026, from 08:00 to 15:00 UTC+8. The publisher’s Japanese announcement gave a 16:00 JST launch time for that release. Those are region-specific timings, not one universal launch time; check the in-game notices for the schedule that applies to your server. Official Steam update notice · Publisher announcement
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What story and exploration content is new?
The update adds Twilight Arc Chapter 2: Paradise’s 22nd White Bunny, the side quest Pandora’s Box, and the Sojourns of the Pages of Time stories for Eve and Falsi. The Steam notice marks the new story content as permanently available after the update. Its listing includes the official story line, “Any peace born of fear will end in fear.”
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallExploration expands to Mount Arcano, with three named areas: Arcano, Arcano Ruins, and Mount Arcano Rift. The publisher describes Arcano as a town governed by strict rules, where residents wear status badges and follow prescribed routines; the story explores the unsettling history beneath that orderly appearance. Steam patch notes · Publisher’s setting description
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How can you get Falsi?
Falsi is a Pyro character proficient with dual blades and dual pistols. The official notice says she is permanently available after the update, with a free gameplay route and a Shop option.
- Free route: Challenge Immersive Theatre and collect Falsi’s commission letter, then use the Secret Letter exchange route described by the publisher. The official notes place the Secret Letter in Immersive Theatre’s Memento.
- Shop route: Falsi can also be bought from the in-game Shop.
Immersive Theatre rewards are subject to rotation: the official update notes list reward changes on September 29. Check the current event panel and reward details before planning around a particular reward. Official access and reward notes · Publisher’s Falsi acquisition details
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Which weapons were added, and when?
The three weapons do not all arrive at once. Stifled Howl is available from the September 8 update; the other two are listed for September 29. Their free routes differ, and the Shop option applies only to the weapons for which it is specified.
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minute| Weapon | Type | Availability and free route |
|---|---|---|
| Stifled Howl | Dual blades | Available after the September 8 update; free through forging. Its Secret Letter is available in Immersive Theatre’s Memento. It can also be purchased in the Shop. |
| Sanguis Sanctus | Whipblade | Permanent availability begins September 29; free through forging, with its Secret Letter obtained from Nocturnal Echoes stages. It can also be purchased in the Shop. |
| Sanguine Plume | Dual-pistol Calamity weapon | Permanent availability begins September 29; free through forging, with its blueprint or reward route tied to Immersive Theatre. No Shop purchase route is specified in the update materials. |
Availability and reward details are from the official Steam notes and the publisher’s announcement.
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What outfit events are available, and when do they end?
The publisher lists three outfit offerings. The dates below are from its September 8 Japanese announcement and are in JST; they should not be treated as server-time deadlines. Event access can also involve prerequisites or separate reward mechanics.
| Outfit offering | Event window in JST | How it works |
|---|---|---|
| Black Artemis for Falsi | After maintenance September 8 through October 19, 2026, 18:00 JST | Available through the Long Road’s End Myriad event or an exchange route using a Rainbow Prism. The publisher lists story and Myriad unlock prerequisites. |
| Capriccio of Whimsy for Berenica and Psyche | September 29 through November 9, 2026, 18:00 JST | Doll-themed skins are part of an event draw using Starweave Thread. The publisher describes eight rewards; a top reward grants a skin and the remaining prizes in that round. |
| City Rules police-themed outfits | September 8 through October 19, 2026, 18:00 JST | The publisher says Nifle’s outfit can be earned free by participating in Star Memorial. |
These are event windows, not evidence that the skins remain obtainable afterward. Confirm the deadline and any eligibility requirements in the event panel for your region. Publisher’s outfit and event announcement
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Which additions are permanent?
- Permanent after the September 8 update: the new Twilight Arc chapter and associated story content, Mount Arcano exploration, and Falsi.
- Permanent from September 8: Stifled Howl.
- Permanent from September 29: Sanguis Sanctus and Sanguine Plume.
- Limited event windows: Black Artemis, Capriccio of Whimsy, and City Rules outfits, according to the publisher’s announced dates.
Permanent availability does not mean every free exchange item or event reward is continuously available: the Immersive Theatre reward rotation changes, so check the current in-game listing. Steam notes on permanent content and reward rotation
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The official notes and publisher announcement describe several play and access changes:
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- New players can unlock the new main story earlier.
- Eligible non-infinite Noctoyager Manual commissions can auto-continue.
- Auto-fishing is added conditionally.
- A co-op lobby and matching features are added.
- An auto-summon lineup toggle is included, along with additional character weapon proficiency.
- Immersive Theatre: Ensemble Act changes include weekly free room creation and participation rewards.
The announcements do not specify every condition for the conditional auto-fishing and commission features; consult the relevant in-game settings and activity descriptions. Official patch notes · Publisher’s feature summary
Is a controller required to play the PC version?
No. The notice lists controller support as an option, not a requirement. Supported PC controllers include Xbox Series and Xbox Elite Series controllers, DualSense, DualSense Edge, and DUALSHOCK 4. The notice recommends a wired connection for DualSense and DUALSHOCK 4.
The update notice lists these PC requirements:
| Minimum | Recommended | |
|---|---|---|
| Operating system | Windows 10 64-bit or later | Windows 10 64-bit or later |
| Processor | Intel Core i5 9th generation / AMD Ryzen 5 2600X or better | Intel Core i7 10th generation / AMD Ryzen 7 3700X or better |
| Graphics | GeForce GTX 1060 / Radeon RX 580 or better | GeForce RTX 2060 / Radeon RX 5700 XT or better |
| Memory | 16 GB RAM | 32 GB RAM |
| Available storage | 40 GB | 40 GB |
These are the requirements stated in the official Steam update notice.
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