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."
If emotional stability plays 
a part in the romantic state,
،إن كان الاستقرار العاطفي يلعب دورا في الحالة الرومنسية
Wenn emotionale Stabilität eine Rolle
in der romantischen Phase spielt,
Si la estabilidad emocional tiene
relación con el enamoramiento,
Si la estabilidad emocional tiene
relación con el enamoramiento,
Si la stabilité mentale
influe sur le sentiment amoureux,
Se la stabilità emotiva gioca una parte
nello stato romantico,
Se a estabilidade emocional
afeta o estado romântico,
Если в романтических чувствах
важно психоэмоциональное состояние,