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."
Oxytocin

 ・Affection ・Sense of Security
・Happiness ・Lactation
أوكسيتوسين

 ・الحبّ ・الحس بالأمان
・السعادة ・الرضاعة
Oxytocin

・Zuneigung ・Geborgenheit

・Freude・Brustmilchproduktion
Oxitocina
• Amor   • Seguridad
• Felicidad
• Secreción de leche materna
Oxitocina
• Amor   • Seguridad
• Felicidad
• Secreción de leche materna
 · AMOUR    · SÉCURITÉ

· BONHEUR   · LACTATION
Ossitocina

 ・Affetto ・Senso di sicurezza
・Felicità 
・Produzione latte materno
Oxitocina

・Afeição ・Felicidade
・Sensação de segurança
 ・Produção de leite materno
Окситоцин

 ・Симпатия
・Чувство безопасности
・Счастье
・Стимуляция лактации