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...
We might suddenly be struck by something 
that could lead to proving love.
.قد نعثر على أمرٍ يقودنا لإثبات وجود الحبّ فجأة
Vielleicht finden wir da was bei,
womit man die Liebe beweisen könnte.
Tal vez encontremos algo
que lleve a probar el amor.
Tal vez encontremos algo
que demuestre el amor.
On trouvera peut-être des idées
pour de nouvelles preuves.
Potremmo imbatterci di colpo in qualcosa 
che potrebbe condurci alla prova dell'innamoramento.
Acredito que acharíamos algo
que possa provar o amor.
Мы можем наткнуться на что-то, 
что поможет доказать любовь.