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...
Keep your head up and always move forward 
boldly, with beauty and dignity!
أبقي رأسك مرفوعًا وتقدّمي بجرأة
 !نحو الأمام دائمًا بجمال وكرامة
Kopf hoch und mit Blick nach vorne,
voll Schönheit und Würde!
Levanta la cabeza y muévete
con ímpetu, belleza y dignidad.
Levanta la cabeza y muévete
con ímpetu, belleza y dignidad.
Tieni alta la testa e vai sempre avanti
con coraggio, bellezza e dignità!
Mantenha a cabeça erguida,
siga em frente com beleza e dignidade!
Держи голову высоко поднятой 
и всегда ходи уверенно и с достоинством!