Primary

• Itsuko Hiraishi Friend of Yuzuki Mikage
• Itsuko Hiraishi Former student of Hideto Tange

Extended

• Yuzuki Mikage Student of Moriya-Sensei
• Yuzuki Mikage Friend of Akie Takasugi
• Yuzuki Mikage Friend of Nozomi Bitou
• Yuzuki Mikage Friend of Sora Egami
• Yuzuki Mikage Friend of Tamayo Shiina
• Yuzuki Mikage Former student of Hideto Tange
• Yuzuki Mikage Friend of Itsuko Hiraishi
• Yuzuki Mikage Friend of Mioi Hatsumi
• Yuzuki Mikage Friend of Akira Kitayama
• Yuzuki Mikage Daughter of Kazuhiko Mikage
• Yuzuki Mikage Daughter of Sayoko Mikage
• Hideto Tange Former teacher of Takamichi Gamou
• Hideto Tange Former teacher of Sora Egami
• Hideto Tange Former teacher of Kunihiko Yagami
• Hideto Tange Former teacher of Tamayo Shiina
• Hideto Tange Former teacher of Nozomi Bitou
• Hideto Tange Former teacher of Akie Takasugi
• Hideto Tange Former teacher of Yuzuki Mikage
• Hideto Tange Former teacher of Itsuko Hiraishi
• Hideto Tange Former teacher of Takeru Yukawa