Monono girlfriend-Yin-Yang, can I fall in love? ~

Yutaro Tamba is an ordinary student who attends night school at night and is just a little occult lover. The day of the summer closing ceremony that Yutaro greeted. Suddenly, his childhood friend invites him to the school building at night. …… This was the beginning of everything. With that night as a trigger, a “dense erotic” “night sex class” with “chastity and yin yang beautiful girls” that is faintly extended to Yutaro’s daily life has begun! !!