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...
Yukimura-senpai, you need to officially 
invite Himuro-senpai to go on a date with you!
يوكيمورا-سينباي، عليك أن تعزم هيمورو-سينباي
 !إلى موعد غراميّ بطريقة رسميّة
musst du, Yukimura, nun Himuro fragen,
ob sie mit dir ausgehen mag.
Yukimura debe invitar
a Himuro oficialmente.
Yukimura debería invitar
a Himuro oficialmente.
Yukimura-senpai, devi invitare ufficialmente
Himuro-senpai a uscire con te!
Yukimura-senpai, você precisa convidar
oficialmente a Himuro-senpai pro encontro!
Юкимуре нужно официально 
пригласить Химуро на свидание!