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."
I thought that you would be able to 
entertain me a little more than this.
.ظننت أنك ستقدر على إمتاعي أكثر من هذا
Dabei hatte ich mir ein wenig mehr
Unterhaltung von euch erhofft.
Creí que ustedes me divertirían
mucho más, pero…
Creía que vosotros me divertiríais
mucho más, pero…
Moi qui espérais que vous puissiez
nous divertir un moment…
Pensavo che mi avreste
fatto divertire un po' più di così.
Eu achei que vocês me
divertiriam um pouco mais.
Честно говоря, я рассчитывал,
что ты сможешь лучше меня развлечь.