Kousei Takeda

Kousei Takeda (武田 恒星) was Koharu Maezono's high school classmate.

Trivia

 * The name Kousei means "constant" (恒) (kou) and "star" (星) (sei).
 * Kousei's surname Takeda means "martial" (武) (take) and "field, rice paddy" (田) (da).