The story is about the forbidden romcom between 7 siblings.

A spin-off of Kanojo, Okarishimasu starring the adorable supporting character, Sumi Sakurasawa!

Based on the idol group, 22/7 (nanabun no nijyuuni).

Kinoshita Kazuya is a regular college student who was just dumped by his girlfriend for another guy. Feeling down in the dumps, he decides to use an app called Diamond to hire Mizuhara Chizuru, a rental girlfriend, to make himself feel better. From their first meeting, she seems to be the perfect girl for him, but is there more to her than meets the eye? And how will their not quite typical relationship develop?

Long, long ago in a certain land, the world was disturbed by a "demon". The demon was "deformed" and didn't even stand 6 feet tall. His jet-black eyes sank into the depths of hell. The people seeing the atrocious and blood-starved appearance of this "deformed demon", trembled in fear. In the tenth year of the Kan'ei era (1633), during the early years of the Edo period, one such demon still exists...as to why "deformed", the reason will astonish you!