noun
Kaisei Junior High School
Proper noun referring to a specific private junior high school in Tokyo, known for its academic rigor and high rate of advancement to prestigious high schools.
彼は開成中学校に通っている。
He attends Kaisei Junior High School.
The name 開成 (Kaisei) is derived from the school's founding philosophy, meaning 'to open and achieve' or 'to develop and accomplish'. The exact historical derivation is uncertain.