Yuri, 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.
Yuri, 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...?