Includes explicit adult content not shown in the broadcast version.
The series follows , a 25-year-old woman who agrees to impersonate her younger cousin at high school. Her secret is quickly discovered by her former classmate, Okito Kanie , who is now the school's world history teacher. In exchange for keeping her identity a secret, Kanie begins a series of romantic and sexual "lessons" with Hana. Version Information Includes explicit adult content not shown in the
There are typically two versions of this anime available on various platforms: Includes explicit adult content not shown in the