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.
Why are you happy again now?
لمَ أنت سعيد مجددا الآن؟
Was freust du dir
plötzlich so einen Ast ab?
¿Por qué te vuelves a alegrar ahora?
¿Por qué te alegras otra vez?
T’as cinq minutes de retard !
Perché hai ricominciato
a esultare di punto in bianco?!
Por que você ficou feliz agora?!
Да чему ты опять-то радуешься?!