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."
Some of you idiot humans with keen intuition 
may already have noticed, bear,
بعض البشر الأغبياء ممن يملكون حدسا قويا
 .قد لاحظوا ذلك سلفا، كوما
Manch einer von euch Dummdödeln
hat’s schon erahnt. Gwar!
Los estúpidos humanos con mejor
intuición quizás ya lo adivinaron,
Los estúpidos humanos con mejor
intuición quizás ya lo habéis adivinado,
Les moins bêtes d’entre vous
auront compris que la norépinéphrine
Alcuni di voi stupidi umani con un intuito
sviluppato forse lo avranno già capito,
Talvez os humanos idiotas com
boa intuiursão já tenham percebido,
Глупые людишки с хорошо развитой
интуицией могли заметить, мишка,