When Himuro finds out that her junior in the Ikeda lab, Kosuke, has spent over 220 thousand yen on his beloved Aika and holds her every night when he goes to sleep, she is shaken by the realization that the only present she's ever given Yukimura is a notebook, and that she's never held him while she slept. She worries that she can't objectively call what she feels "love." As Yukimura and Himuro endlessly debate "love" using numbers, Kanade proposes that the two of them go on a date, but...
The reason your research isn't progressing 
is because what you're doing isn't normal.
سبب عدم تقدّم بحثكما هو كون ما تقومان به
 .أمرًا غير عاديّ
Ihr macht keine Fortschritte
bei eurer Forschung,
Su investigación no progresa
porque lo que hacen no es normal.
Vuestra investigación no avanza
porque lo que hacéis no es normal.
Si votre expérience n’avance pas,
La vostra ricerca non sta progredendo
perché ciò che state facendo non è normale.
A razão pela qual sua pesquisa não progride
é que o que estão fazendo não é normal.
Ваше исследование не продвигается, ведь
 вы не занимаетесь нормальными делами.