When a shapeshifting enemy known as Gnosia infiltrates a lone spaceship, the crew has only one way to survive: identify the imposter each day and put them into cryo-sleep. But for Yuri, the day never ends. Trapped in a time loop, she relives the first day of the crisis over and over. To escape, Yuri must uncover the truth behind Gnosia and the time loop itself—before it’s too late.
Cast: Chika Anzai, Ikumi Hasegawa, Akari Kito
12+UHDHDCC
Season 1
21 episodes
1. Starting PointYuri, who has lost their memory, wakes up aboard the Interstellar Cruiser D.Q.O. They are taken by Setsu to participate in a meeting to identify the "Gnosia," a being that attacks and annihilates humans.12+CC27minOct 12, 2025
2. LoopsYuri, who looped back to the first day, attends the meeting knowing who the Gnosia is. Yuri tries to cast suspicion on SQ, but the discussion doesn't progress as expected...?12+CC27minOct 19, 2025
3. New Crew MembersShigemichi and Stella join the group, and a meeting is held with seven people. During the meeting, Yuri uses their intuition to identify the Gnosia, but they struggle to convince the other crew members.12+CC26minOct 26, 2025
4. Silver KeyDespite identifying the Gnosia and surviving, Yuri finds themself back at the first day in a daze, when a person with an unusual presence, Yuriko, appears before them. She seems to know something, but...?12+CC24minNov 2, 2025
5. Wild IntuitionNew crew members Comet and Chipie join the meeting. Two of the crew claim to be engineers, but Racio argues against voting for them, resulting in the votes going to...?12+CC26minNov 9, 2025
6. Nostalgic FlowersYuri attends the meeting in a new role as the "Guardian Angel." With Jonas and Kukrushka joining, the meeting now has 13 people, and as the situation becomes chaotic, one crew member raises their hand.12+CC26minNov 16, 2025
7. Understand?Otome and Remnan join in and the meeting is about to begin, but the other new crew member, Sha-Ming, refuses to come out of his room. Meanwhile, Shigemichi begins to talk about his feelings for Stella.12+CC24minNov 23, 2025
8. Guard DutyRemnan and Kukrushka step forward as "Guard Duty," a role that confirms they are human. As the number of positions increases and the meeting becomes more complicated, Sha-Ming, who is suspected by Kukrushka, takes a certain action...12+CC24minNov 30, 2025
9. World of GnosiaYuri awakens as a Gnosia. Though they feel hesitant about deceiving their fellow crew members, they are touched by the feelings of Comet, who shares their position, and resolve to fulfill their role as promised to Setsu.12+CC25minDec 7, 2025
10. Citizen SlimeYuri, who has looped once again, is astonished by their new appearance. Amidst this, the meeting is postponed due to Sha-Ming's absence, and Raqio reveals the secret of the Silver Key to the bewildered Yuri.12+CC24minDec 14, 2025
11. 511Upon waking up, Yuri finds themself in a loop where they and SQ are on Guard Duty. Knowing that they are both human, the two grow closer, and eventually SQ reveals her true "identity"—.12+CC26minDec 21, 2025
12. AllacosiaGina, who intensely dislikes lying and deceiving others, is confided in about the loops by Yuri. Recalling a painful past, she expresses her fears and resistance toward becoming a Gnosia.12+CC24minDec 28, 2025
13. InterludeBefore the meeting, Setsu loses consciousness and is taken to the Sickbay. As they share the information they have acquired, Yuri suggests that Setsu, who appears exhausted from having repeated hundreds of loops, take a break. The "Truth Arc" begins...12+CC25minJan 11, 2026
14. 15-Person Meeting"If you survive this loop, I'll tell you everything." Yuri, presented with a condition by Yuriko, attends a meeting where all 15 crew members are gathered. However, once the meeting begins, an unexpected proposal comes from Yuriko.12+CC25minJan 18, 2026
15. The Final ProblemRaqio, who was identified as a Gnosia by the Engineer, Yuri, claims innocence based on a certain action. The emergence of an AC Follower throws the meeting into chaos, and Yuri is cornered.12+CC25minJan 25, 2026
16. TruthWhen Yuri awakens, it's in a world line where the ship has escaped Gnosia contamination. As Yuri is bewildered by Kukrushka's implication of "the end of the universe," an alarm blares detecting an abnormal biological reaction.12+CC24minFeb 1, 2026
17. BugYuri learns the truth: that they are a "Bug" that shouldn't exist. They struggle to escape the time loop and the cosmic collapse caused by their dual existence, but...?12+CC24minFeb 8, 2026
18. A World With a FutureYuri awakens on "DAY 0," the day before the loop they always experience and before escaping Liu-An. They meet Setsu there, but Setsu seems unaware of the Silver Key or the loops...12+CC27minFeb 15, 2026
19. EpilogueYuri has escaped the loop, but the crew members have lost all memory of Setsu. On the planet where they land, Yuri follows Setsu's traces, only to be confronted with the harsh fact that Setsu's very existence has vanished.12+CCMar 1, 2026
20. To the World of StarsIn order to end Setsu's loop, Yuri obtains Raqio's "Silver Key." As Yuri tries to host the key once again, Raqio calls out to them.12+CCMar 8, 2026
21. End Point and Starting PointYuri reunites with Setsu on the other side of the dimensional door. They find themselves in the world line before they received the Silver Key that first awakened them. And so, their final discussion begins――12+CCMar 15, 2026
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GNOSIA
★ 7.9/1020251 season21 episodesEnded
Who is the Gnosia?
When a shapeshifting enemy known as Gnosia infiltrates a lone spaceship, the crew has only one way to survive: identify the imposter each day and put them into cryo-sleep. But for Yuri, the day never ends. Trapped in a time loop, she relives the first day of the crisis over and over. To escape, Yuri must uncover the truth behind Gnosia and the time loop itself—before it’s too late.
Creators and cast
- Created by
- 川勝徹, Yoshitaka Kimura
- Studio
- domerica, Aniplex, Tokyo MX
