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.
For me, the time I spent with 
you researching romance...
بالنسبة لي، الوقت الذي قضيته رفقتك 
...في البحث في موضوع الرومنسية
Für mich war unsere gemeinsame Zeit
an der Liebesforschung
¿Sabes? El tiempo que pasé
contigo investigando el amor
¿Sabes? El tiempo que pasé
contigo investigando el amor
Tu sais, j’ai apprécié ces moments
passés en ta compagnie
Per quanto mi riguarda,
mi sono divertita tanto
Para mim, o tempo que passamos
pesquisando sobre o amor...
Лично для меня наше совместное
исследование любви стало...