To find proof as to whether he is "in love" or not, Yukimura pats Himuro on the head from point-blank range. Seeing this, Ibarada, an upperclassman in the Ikeda Lab, talks about the need for a control experiment. In other words, in order to prove that the racing of his heart is because of Himuro specifically and not just because he's facing a woman, Yukimura has to pat Kanade and Ibarada on the head too. Himuro, on the other hand, sets out to prove that food made with love tastes better and cooks, but...
After all, I've lived my life thus far 
having absolutely no interactions with women.
بعد كلّ شيء، فقد قضيت كلّ حياتي 
.دون أية تفاعلات مع النساء
Bislang hatte ich in meinem Leben ja auch
keinerlei Interaktion mit dem anderen Geschlecht.
Después de todo, nunca tuve
interacción con las mujeres.
Después de todo, nunca he tenido
interacción con las mujeres.
J’ai toujours vécu
sans aucun contact avec les femmes.
Alla fin fine, per tutta la mia vita non ho avuto
la benché minima interazione con le donne.
Afinal, eu praticamente nunca tive
interação com mulheres.
Ведь всю свою жизнь с женщинами 
я не взаимодействовал.