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."
Whether I'm asleep or awake, 
I keep thinking of you!
!سواءٌ كنت مستيقظا أو نائما، أواصل التفكير فيك
Ob ich schlafe oder wache –
ich kann nur daran denken!
Pienso en ti las 24 horas del día.
Pienso en ti las 24 horas del día.
Je ne pense qu’à elle, jour et nuit !
Continuo a pensare a te,
sia da sveglio che quando dormo.
Dormindo ou acordado, eu penso nela.
И во сне, и бодрствуя,
я думаю только о нём.