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...
A kiss of the highest 
theoretical value... please.
....قبلة ذات أكبر قيمة نظريّة رجاءً
Einen Kuss mit dem größten
anzunehmenden Effekt … Bitte her damit!
Un besito del mayor valor teórico, ¿chi?
Un bechito
del mayor valor teórico, ¿vale?
Et ce bisou de la plus grande
valeur théorique, alors ?
Dammi un bacio dal valore teorico più alto di tutti!
Eu quero um beijo com
o maior valor teórico.
Подари мне самый значимый поцелуй... 
пожалуйста.