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...
Then, without realizing it, she met him 
again and fell in love with him again!
ثمّ من دون أن تدرك ذلك، التقت به مجدّدًا 
!ووقعت في حبّه من جديد
Ohne es zu bemerken, ist sie ihm
wiederbegegnet und hat sich in ihn verliebt.
Luego, sin saberlo, lo volvió a ver
y se enamoró de nuevo.
Después, sin saberlo, lo volvió a ver
y se enamoró otra vez.
Puis elle retombe amoureuse
sans s’apercevoir que c’est lui.
Poi, senza rendersene conto, l'ha incontrato ancora
e se n'è innamorata di nuovo!
Sem perceber, ela o encontrou
de novo e se apaixonou!
Затем она снова встретила Юкимуру 
и снова влюбилась в него!