Though Yukimura and Himuro went as far as to kiss for the experiment, they were soundly beaten by Chris and Suiu's oxytocin levels in their saliva. Panicked, Yukimura suggests that they conduct control experiments. However, in the midst of the Yukimura/Suiu pairing, Suiu's seductive manner ends up causing Yukimura to ogle her charms. Seeing that, Himuro runs another experiment with Yukimura, but ends up sulking. The two end up having a lover's quarrel. Yukimura's behavior causes Chris to look down at him coldly and say, "As a man, you are a failure."
For some reason, in America 
they call it norepinephrine.
.لسبب ما في أمريكا، يسمونه نورإبينفرين
Aus irgendeinem Grund nennt
man es in Amerika Norepinephrin. Gwar!
Por alguna razón, en Estados Unidos
le dicen norepinefrina.
Por alguna razón, en Estados Unidos
la llaman norepinefrina.
Pour des raisons inconnues,
on l’a nommée autrement aux États-Unis.
Per qualche motivo, in America
la chiamano "norepinefrina".
Por algum motivo, nos EUA
chamam de noradrenalina.
В Америке его почему-то
называют эпинефрином.