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."
Both the palpitations of love and the 
maddening passion are eventually lost,
.كل من تسارع نبضات القلب والشغف الشديد سيختفيان
Das Herzklopfen und die unerträgliche
Leidenschaft können verloren gehen.
Las palpitaciones y la pasión
desquiciada eventualmente se pierden
Las palpitaciones y la pasión
desquiciada desaparecen con el tiempo
Ces sentiments tumultueux
finissent par s’estomper.
Sia le palpitazioni che
la passione molesta alla fine scompaiono.
Tanto a palpitação quanto a paixão
enlouquecedora eventualmente se vão,
Учащённое сердцебиение и сводящая с ума
страсть постепенно сходят на нет.