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.
There were so many emotions, 
such variety in forms of affection...
...كانت هنالك مشاعر عديدة، أشكال متنوعة من الشغف
Sie bestand aus so vielen Gefühlen
und so vielen Formen der Zuneigung …
Vimos los diferentes sentimientos
y formas que puede tener el amor.
Vimos los diferentes sentimientos
y formas que puede tener el amor.
Nous avons découvert
une variété infinie de comportements
C'erano così tante emozioni,
una grandissima varietà di forme d'affetto...
Havia tantas emoções,
uma variedade de afeto,
И мы обнаружили столько эмоций, такие
разнообразные проявления симпатии...