Overview:

The main character of Roninchu is asked by his older sister Manami to tutor her daughter during summer vacation.
When she readily agreed to change her mood and earn money for her living, a cheeky female brat…
Full 3D! As a tutor for female brats, improve their academic ability and teach them to understand at the same time!
If you don’t have time, you can have sex right away in FREE mode! (*However, story events are excluded)