Katagiri Senior High School

Alongside the Hori Household, this is the location for most of the story.

Students

 * Hori Kyouko
 * Miyamura Izumi
 * Ishikawa Toru
 * Yoshikawa Yuki
 * Sengoku Kakeru
 * Iura Shu
 * Kouno Sakura
 * Ayasaki Remi
 * Yanagi Akane
 * Watabe Ichirou
 * Taiki Mizouchi

Teachers

 * Terajima Reiko -- As Chemistry and homeroom teacher of class 3-1
 * Yasuda Shin -- As English teacher and supervisor of the Student Council