Episode 12

"Genius Lives Only One Story Above Madness." (天才とは、狂気よりも1階層分だけ上に住んでいる者のことである.) is the twelfth and the final episode of You-Zitsu anime series.

Summary
Ibuki notifies Katsuragi through a ham radio that she has secured Suzune's leader card as class A and class C are revealed to be working together. With Suzune's illness getting worse, Ayanokoji has her withdraw from the test. On the final day, the students clean up their campground and the classes guess the leaders with class B opting not to make any guesses.

At the assembly, Ryuen reveals that he secretly forged a pact with Katsuragi to transfer 200 test points to class A in exchange for either the leader card or a photo of it. Class C quickly spent the remaining 100 points and everybody except for Ryuen, Ibuki, and Kaneda, who was assigned to spy on class B, withdrew from the test. Class C would then guess the leaders: Totsuka for class A, Chihiro Shiranami for class B, and Suzune for class D.

The results are revealed, and the winner is class D with 225 points, followed by class B with 140 points, class A with 120 points, and class C with 0 points. The students return to the cruise ship where Alice Sakayanagi reveals that things went according to plan in making everybody mistrust Katsuragi to weaken his leverage over the class as her ally Hashimoto secretly outed class A's leader to Ryuen. Ayanokoji explains to Suzune that he intentionally led Ibuki to stealing the card, and then he had Suzune withdraw so that he could make himself the leader ensuring that class A and class C incorrectly guessed her as the leader.

As for guessing the other leaders, he reveals that he only saw the backside of Katsuragi's card and knowing how cautious he was that he deduced that Totsuka was class A's leader. He also was aware that Ryuen had not withdrawn leading him to guessing him as class C's leader as he saw him with the same radio Ibuki was holding. Not wanting to jeopardize class D's alliance with class B that Ayanokoji opted not to find class B's leader. Ryuen reveals that the main motivation for the alliance with class A is so that the students would sign a contract to receive 20,000 points from each student every month until graduation. Having told Suzune that she needs allies, Ayanokoji makes it appear that she was the one responsible for class D's victory in order to have others put their trust in her.

Much later, Ayanokōji meets with Sae Chabashira who reveals it was his father who requested he be expelled though the latter said Ayanokōji would leave on his own accord. Chabashira soon asks him on what he plans to do now, to which vaguely answers as she laughs at his response. Suzune confronts him once more as he calmly states she needed allies and noticed she finally changed. After he confirms he did everything to help her, she gets flustered and blushed before begrudgingly thanking him as she stated she will see him as an ally though she warns Ayanokoji not to get too friendly with her as all she wants is to get to class A.

While she goes on, Ayanokōji internally notes that he doesn't acknowledge her, Kushida, and Hirata as his allies but merely pawns in helping him win. As it turns out, Ayanokōji is more than willing to do anything to accomplish that goal even use people for that purpose believing them to be tools. He ends his monologue by stating that all that matters is him winning in the long run.

Episode Notes

 * Sae Chabashira states she knows of Kiyotaka's life.
 * The man who told Chabashira to expel Kiyotaka is confirmed to be his father.
 * Mio was confirmed to be a spy in Kakeru's plan to discover the leader of Class-1D.
 * The student of Class C who was placed in Class B's camp was also a spy.
 * The details of Katsuragi and Kakeru's plan is revealed.
 * Ichinose large amount of points from Episode 4 are seen again
 * Ichinose nearly mentions the reason for the many points.
 * Kiyotaka's true mindset because of his time in the White Room revealed.
 * It turns out that he never thought much of his classmates as hinted by Suzune in Episode 6.