1Punto de partida
Yuri despierta a bordo de una nave espacial y tendrá que intentar sobrevivir a la amenaza de los gnosia.
2Bucle
Yuri repite el primer día sabiendo quién es el gnosia, pero las cosas podrían no ser tan sencillas.
3Nuevos miembros en la tripulación
Yuri conoce a dos tripulantes de la nave a los que no recuerda y deberá lidiar por su cuenta con los gnosia.
4La llave de plata
A pesar de haber identificado a los gnosia y sobrevivir, Yuri se encuentra de vuelta en el primer día.
5Instinto salvaje
Dos miembros y un rol nuevos salen a escena y Yuri deberá dar lo mejor de si para sobrevivir una vez más.
6Una corona de flores para tu recuerdo
Yuri asiste a la asamblea desempeñando un nuevo papel como ángel guardián.
7Understand?
Otome y Remnan se unen a la tripulación, pero cuando quieren iniciar la asamblea…
8Vigía
Remnan y Kukrushka desempeñan un nuevo rol en este bucle: el del vigía.
9El mundo de los gnosia
Esta vez, Yuri despierta como un gnosia y se ve obligado a comportarse como tal.
10Citizen Slime
Yuri, 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.
11511
Upon 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"—.
12Allacosia
Gina, 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.
13Interlude
Before 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...
1415-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.
15The Final Problem
Raqio, 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.
16Truth
When 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.
17Bug
Yuri 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...?
18A World With a Future
Yuri 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...
19Epilogue
Yuri 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.
20To the World of Stars
In 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.
21End Point and Starting Point
Yuri 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――