The first semester has come to a close, and the Ikeda lab is having a party where everyone's bringing what they like to eat and drink. They're having fun, playing games like the "prime number Yamanote line game," when a drunken Himruo finally does a certain something with Yukimura... And even Kanade ends up drunk... On the other hand, the mood quantifier obtained through the previous round-robin kiss experiment has progressed their research tremendously, and in order to gather more data, Yukimura and the others use fairy tales such as "Snow White," "Kaguya-hime," and "The Crane Returns a Favor" as references, but...
I have the feeling I did 
something crazy, but...
...لديّ شعور بأنّني فعلتُ شيئًا جنونيًّا لكن
Mir ist, als hätte ich irgendetwas
Verrücktes angestellt, aber …
Siento que hice algo malo, pero…
Creo que hice algo malo, pero…
J’ai l’impression
que j’ai fait n’importe quoi…
Ho la sensazione di aver fatto qualcosa di folle, ma...
Eu tenho a impressão
de que fiz algo errado, mas...
Такое чувство, 
что я что-то учудил, но...