Tsukinomori Girls' Academy

, is the school which the Morfonica members and MyGO!!!!! member Nagasaki Soyo attend. It has branches all the way from kindergarten to high school.

It is mostly known for being a rich girls' school filled with highly talented individuals who excel in various fields, such as sports, arts, and music. According to Mashiro, even the student council president is a famous and exceptionally talented girl, known for ranking in Top 5 in the national mock exams, and winning the national archery competition as well. On top of that, the student council vice president ranked 10th in the national equestrian championship.

In the Lost Butterflies' Tritone event, a new principal starts her duties at the school and instantly bans students from using their phones (except during emergencies) and bringing things such as manga or magazines to the campus. According to her own words, she is doing this in order to "restore Tsukinomori's lost spirit back to its original form."

Unknown class

 * Nagasaki Soyo

2-A

 * Kurata Mashiro
 * Kirigaya Touko
 * Yashio Rui

2-B

 * Futaba Tsukushi
 * Hiromachi Nanami

Trivia

 * The school's motto is "Your spark will light the way".
 * Tsukinomori translates to "moon forest".
 * According to Nanami, it is rare for a Tsukinomori student to have a part-time job due to most of them being from rich families.