• There are spoilers contained in these pages.
• Some of the information might hold true for parts of the series, but not all of it.

Students

• Koishikawa Miki (小石川光希)
• Matsuura Yuu (松浦遊)
• Suou Ginta (須王銀太)
• Akizuki Meiko (秋月茗子)
• Suzuki Arimi (鈴木亜梨実)
• Miwa Satoshi (三輪悟史)
• Rokutanda Tsutomu (六反田務)
• Sakuma Suzu (佐久間すず)
• Tsuchiya Kei (土屋蛍)
• Kitahara Anju (北原杏樹)
• Takase Yayoi (高瀬弥生)

Parents

• Koishikawa Rumi (小石川留美)
  [now: Matsuura Rumi (松浦留美)]
• Koishikawa Jin (小石川仁)
• Matsuura Chiyako (松浦千弥子)
  [now: Koishikawa Chiyako (小石川千弥子)]
• Matsuura Youji (松浦要士)

• Miwa Yoshimitsu (三輪由充)
• Tsuchiya Reiji (土屋礼司)
• Kitahara Gen (北原弦)
• Kitahara Masako (北原晶子)
• Sakuma Rihito (佐久間理人)

Teachers/others

• Namura Shin'ichi (名村慎一)
• Momoi Ryoko (桃井亮子)
• Kijima Takuji (木島拓路)
• Kijima Rei (木島黎)
• Mizutani Akira (水谷明)

Americans

• Michael Grant
• Brian Grant
• Jinny Golding
• Doris O'Conner
• William Matheson
• Mr. Rainy