Binetsu Danshi no Oose no mama(2018)

Binetsu Danshi no Oose no mama

Akari is the president of the student council. She can't let up the pressure and has to set an example. One day, a handsome boy younger than her asks her if he can touch her?! Surprised, but not being experienced with boys, she starts a strange relationship with her kouhai.

Included one-shots:
Volume 2: Shishunki Joshi no Arukikata
Volume 3: Shishunki Joshi no Hajimekata