Yukimura and the others will be giving presentations at the summer study sessions. There's less than a month left until the training camp, but Kosuke still hasn't picked a research theme. Professor Ikeda suggests research into "an algorithm that could instantly find the True End in any dating game." On the other hand, Yukimura and Himuro are focused on the hormone which is released when a person is touched by someone they love - oxytocin. By investigating the amount present in a person's saliva, they think they might be able to determine if the person loves the one who touched them, and they decide to immediately put it to the test with some close contact...
That's exactly why I was saying we 
should have collected oxytocin then.
لهذا السبب بالتحديد قلت أنه كان يجدر بنا
 .جمع الأوكسيتوسين حينها
Deshalb sagte ich ja, wir hätten da
bereits Oxytocin bestimmen sollen.
Por eso decía que debimos
haber medido la oxitocina.
Por eso digo que tendríamos
que haber medido la oxitocina.
C’est pour ça que je dis
qu’on aurait dû prélever l’ocytocine.
Proprio per questo stavo dicendo che
avremmo dovuto misurare l'ossitocina in quel momento.
É exatamente por isso que devíamos
ter medido sua oxitocina naquele momento.
Я и говорю, что нужно было 
в тот раз измерить уровень окситоцина.