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."
The law of universal gravitation states that 
the closer physical objects are to each other,
ينص قانون الجاذبية الكونية على أنه كلما اقتربت
 ،الأجسام المادية من بعضها البعض
Das Newtonsche Gravitationsgesetz besagt,
dass je näher sich zwei Objekte kommen,
La ley de gravitación universal
La ley de gravitación universal
La force gravitationnelle
La legge di gravitazione universale afferma
che più due oggetti fisici sono vicini tra loro,
A lei universal da gravidade diz que,
quanto mais próximos fisicamente,
Закон всемирного тяготения гласит,
что чем ближе физические объекты,