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."
Following this theory, 
then everything is consistent!
!باتباع هذه النظرية، فكل شيء منطقيّ
Dieser Theorie zufolge
ist alles konsistent!
Si nos basamos en esta teoría,
todo calza perfectamente.
Si nos basamos en esta teoría,
todo encaja perfectamente.
Cette théorie permet
de tout expliquer !
Secondo questa teoria, è tutto coerente!
De acordo com essa teoria,
tudo se torna mais consistente!
В рамках этой теории
всё абсолютно закономерно!