At the Okinawa training camp, Yukimura and Himuro shared a kiss of the highest theoretical value on a bridge of the greatest mood value under the beautiful, painterly rays of the morning sun. But the amount of saliva they collected was insufficient and so retesting is required. They head to the biological sciences' Regulation of Biological Systems Department to meet with a specialist in saliva testing. There, they find an alluring woman dressed like a traditional courtesan wearing a lab coat, Suiu, and her sweetheart, Chris. When Yukimura asks Suiu and Chris to help with their experiment to "give proof of love," Chris and Suiu flaunt their overwhelming aura of love.
If you measure the levels 
of oxytocin in saliva,
،إن قمت بقياس مستويات الأوكسيتوسين في اللعاب
Anhand der Oxytocin-Werte im Speichel
Al medir la oxitocina en la saliva,
Al medir la oxitocina en la saliva,
Mesurer son taux d’ocytocine
Misurando i livelli di ossitocina nella saliva,
Olhando a oxitocina, sabemos
o nível de felicidade da pessoa.
Измерив количество окситоцина в слюне,