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."
At that point, if the two 
maintain their relationship...
...في تلك اللحظة، إن حافظ الشخصان على علاقتهما
Wenn man darüber hinaus
an der Beziehung festhält,
y si su relación perdura a pesar de eso,
y si la relación perdura a pesar de eso,
A quel punto, 
se i due continuano a stare insieme...
e, se o casal ainda
mantiver sua relação,
Если к тому моменту
отношения сохраняются...