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."
We began this romance research 
with my full approval, as well.
.بدأنا بحث الرومنسية هذا بموافقتي الكاملة أنا أيضا
Wir haben die Liebesforschung
mit meiner vollen Zustimmung begonnen.
Empezamos nuestro estudio
del amor con mi consentimiento.
Empezamos nuestro estudio
del amor con mi consentimiento.
Cette expérience,
nous avons consenti à la faire.
Anch'io ero pienamente d'accordo
a dare inizio a questa ricerca sull'amore.
Começamos este experimento
com minha completa aprovação.
Мы начали это исследование любви
при моём полном согласии.