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."
Even when we make close contact, 
our hearts race and we get nervous.
.حتى وإن تقربنا من بعض، نبضات قلوبنا تتسارع ونشعر بالتوتّر
In deiner Nähe bekomme ich
Herzklopfen und werde nervös.
Aunque estemos pegaditos,
estoy nerviosa y me late el corazón.
Aunque estemos pegaditos,
estoy nerviosa y me late el corazón.
Ton contact provoque en moi
nervosité et excitation.
Anche quando stabiliamo un contatto ravvicinato,
abbiamo il batticuore e ci agitiamo.
Mesmo que estejamos próximos,
ficamos nervosos e apreensivos.
При физическом контакте
у нас учащается пульс, и мы нервничаем.