【tsuniverse】Summer Possession

Possession TSF, in which the sister is possessed by a neighborhood bad boy and her body is taken away.

During summer vacation, a boy named Kaito and his two older sisters come to visit their grandmother.
The story is about two neighborhood kids who are stalking Kaito, and his sister Ayaka rescues him from the two bad kids, but the bad kids’ counterattack headbutt causes Ayaka’s body to be possessed.
This is the first time that I’ve ever seen such a thing.