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."
Before, my heart used to race 
at how cool Chris was...
...سابقا، كانت نبضات قلبي تتسارع أمام روعة كريس
Vorher hat mein Herz immer wie wild geklopft,
weil Chris so cool war …
antes Chris me parecía genial
y me aceleraba el corazón,
antes Chris me parecía genial
y me aceleraba el corazón,
Chris était ce garçon si élégant
qu’il m’en donnait des frissons.
Tempo fa, il mio cuore batteva all'impazzata
per quanto era figo Chris...
Antes, meu coração acelerava
porque o achava tão bacana...
Прежде моё сердце бешено колотилось
от того, какой Крис классный...