Events · Update event
Who’s That Aniimo?
A recurring guessing event in three windows between 16 September and 22 October 2026. The calendar gives the dates and nothing else.
Updated
- Start
- 16 September 2026
- End
- 22 October 2026
- Duration
- 3 windows · 23 days
- Windows
- 3
- Featured Aniimo
- None listed
What is Who’s That Aniimo??
Who’s That Aniimo? runs three times on the launch calendar: 16 to 24 September, 2 to 8 October and 16 to 22 October 2026. The first window is nine days because it starts on launch day; the two that follow are seven day windows a fortnight apart.
The official calendar lists only the dates. No notice on aniimo.com explains the format, and the event did not carry a published description during the closed beta either, even though the beta calendar in the Welcome to Idyll notice shows it running there three times as well.
So the honest position is a schedule rather than a walkthrough: three windows, seven to nine days each, opening on a Wednesday, a Friday and a Friday. We will add the official wording here when it is published.
Dates and windows
| Window | Dates | Days | Featured Aniimo | Status |
|---|---|---|---|---|
| Window 1 | 16 September 2026 to 24 September 2026 | 9 | TBD | Starts tomorrow |
| Window 2 | 2 October 2026 to 8 October 2026 | 7 | TBD | Starts in 17 days |
| Window 3 | 16 October 2026 to 22 October 2026 | 7 | TBD | Starts in 31 days |
Dates are the UTC+8 calendar days the official calendar publishes. The source gives no time of day, so treat the last date as the whole of that day in UTC+8 and do not leave a reward to the last hour of your own.
Rewards
- Rewards are not published yet.
Tips
The gaps matter more than the windows: there are eight days between the first and second window, and seven between the second and third, so a missed run is not a missed season.
The third window closes on 22 October 2026, six days before the launch calendar ends. That is the last published run.
Each window is short. Check in on the opening day rather than the last, because nothing published says whether progress carries between windows.
Other events running at the same time
Calendar →
Starts tomorrowNew player eventPrismana Promise: Choose Your Prismana AniimoFrom 16 Sept · UTC+8
Starts tomorrowNew player eventSet Out, Pathfinder!From 16 Sept · UTC+8
Starts tomorrowUpdate eventJourney Handbook16 Sept–28 Oct · UTC+8
Starts tomorrowUpdate eventIdyll Ecological Investigation16 Sept–20 Sept · UTC+8
Starts in 10 daysUpdate eventGlamour Star25 Sept–1 Oct · UTC+8
Starts in 10 daysUpdate eventAniimo Discovery: Dazmand25 Sept–8 Oct · UTC+8
Starts in 16 daysUpdate eventJourney Moments1 Oct–28 Oct · UTC+8
Starts in 5 daysUpdate eventTracing the Trail20 Sept–9 Dec · UTC+8
Starts tomorrowUpdate eventLegendary Journey: Trail of Butterfly Shadows16 Sept–25 Sept · UTC+8
Starts in 10 daysUpdate eventLegendary Journey: Walking with Irisalis & Gift of Blessing25 Sept–9 Dec · UTC+8
Starts in 3 daysVein AbundanceVein Abundance18 Sept–20 Sept · UTC+8
Starts in 3 daysEggcelerationEggceleration18 Sept–20 Sept · UTC+8
Who’s That Aniimo? FAQ
When does Who’s That Aniimo? start and end?
There are three windows on the official calendar: 16 to 24 September, 2 to 8 October and 16 to 22 October 2026, in UTC+8 calendar days.
Is Who’s That Aniimo? still available?
It runs in windows rather than continuously. Check the dates above against today: between windows the event is closed, and the last published window ends on 22 October 2026.
How does Who’s That Aniimo? work?
The official calendar lists only the dates; the format is not published yet.
What are the rewards?
Rewards for Who’s That Aniimo? are not published yet. The official calendar bar carries the three windows and nothing else, and no notice on aniimo.com lists a reward track.
Why is the first window longer than the others?
It opens on launch day, 16 September, and runs to 24 September, which makes it nine days. The two later windows are seven days each.
Will it run again after 22 October?
Nothing published says so. The launch calendar only covers dates up to 28 October 2026.
Every date on this page is the UTC+8 calendar day the official source publishes, re-checked on 14 September 2026. Rewards the game has not announced are written as such rather than estimated. Sources: Aniimo official event calendar, Official notice: Welcome to Idyll. Compiled by Lorenzo Bruno (Yieng), about this site. Game assets © Pawprint Interactive Entertainment Pte. Ltd. This is an unofficial fan resource.