|St. Chronica's Academy|
|Romaji Name||Hijiri kuronika gakuen (Sei kuronika ga kuen)|
|Novel Debut||Hasegawa Kodaka|
|Anime Debut||Episode 1|
The school was originally founded by Tenma's great-grandfather as an all-girls school. Tenma's father later became the chairman of the school and later, passed the position down to Tenma. Originally being a prestigious, girls-only school, Tenma shaped it into a more lax and co-ed one - something originally proposed to him by Noel Redfield in the past.
The school is a rather large campus with a high school and middle school division as well as living quarters for the sisters/nuns.
The school has many areas, such as :
- The chapel. It acts as a church. The Neighbor's Club is held in Common Room 4 here.
- A swimming pool, which is a recent addition.
- A library, where Kodaka would sometimes go to study for exams.
- The Science room or the Rika Room. A special place for Rika Shiguma to stay and do her research alone.
- The Board Game Clubroom is a club room.
- The Infirmary which is basically the nurses' office.
There are several clubs seen/mentioned at St. Chronica's. These being:
- Neighbor's Club
- Basketball Club
- Board Game Club
- Judo Club
- Track and Field Club
- Brass Band Club
- Wind Instrument Club
- Though not seen, several students from class 2-5 are mentioned in Episode 11. Their names being Tanabe, Tsuda, Hirasawa, Fujioka, Horiguchi and Matsushita. Episode 12 furthers the scene, naming off Miyajima, Butou, Yaegashi and Yamazaki.
- In the same scene, in the manga chapter Let's go to a beauty salon, several students' names are called out. Some of which are the same as in Episode 11. These students being Tanabe, Tsuda, Fujioka and Matsuda.
- The school has a dress code and students have to wear different uniforms depending on the season.