Ajisai academy is an old highschool located in Tokyo, it's filled with hydrangea flowers that always bloom beautifully, thus the name. The school's mascot is a cute green frog.

Students that have enrolled in Ajisai ended up being successful, so while the school is more of an average high school, it is a good school to be in. Some achieve their academic dreams and others just live their best lives. It's up to the students, the school will encourage and guide their students through the challenges of teen years.