Yukimura is working hard on his computer, as usual, when Himuro suddenly says, "I am in love with you. Her confession greatly shakes Yukimura. Unlike the last time, Himuro states her feelings matter-of-factly. Yukimura asks, "What theory did you use to determine that you love me?" Himuro replies by taking Yukimura out on a date and begins performing experiments they've done before such as measuring heart rates, using an emotion counter, collecting saliva, and the kiss experiment.
The moment that a person realizes 
that they love someone...
...في اللحظة التي يدرك فيها الشخص أنه يحب أحدهم
Wenn einem bewusst wird,
dass man jemanden liebt,
En el momento en que te das
cuenta de que amas a alguien,
En el momento en que te das
cuenta de que amas a alguien,
C’est à la découverte
du sentiment de l’amour
Il momento in cui qualcuno
capisce di essere innamorato...
O momento em que a pessoa
percebe que ama alguém...
И когда человек признаётся себе в том,
что влюблён в кого-то...