A passionate teacher, Kumiko Yamaguchi, a.k.a. Yankumi, is now overseeing the new students of Class 3D of Akado High School, who still have not opened up to her and are…

“A world” – After graduating from a university, close friends Takashi Tsurug and Tomohiko Miwa begin work at a company which does brain research. One day, Tomohiko introduces Mayuko Tsuno..