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.
to separate out the tiny particles and 
substances of different weights from the liquid.
للفصل ما بين الجزيئات الصغيرة والمواد ذات الأحجام
 .المختلفة في سائل ما
um Moleküle und Partikel
entsprechend ihrer verschiedenen Dichten
para separar las pequeñas 
partículas o las sustancias
y separan las diferentes partículas
o sustancias
à un liquide
pour en séparer les petites particules
per separare le minuscole particelle
e le sostanze contenute normalmente nel liquido
para possibilitar a separação
de pequenos objetos
благодаря которой происходит отделение