Primary

• Akio Mutou Teacher of Hanako Ikezawa
• Akio Mutou Teacher of Shiina Mikado 'Misha'
• Akio Mutou Teacher of Shizune Hakamichi
• Akio Mutou Teacher of Hisao Nakai
• Akio Mutou Teacher of Molly Kapur
• Akio Mutou Teacher of Takashi Maeda
• Akio Mutou Teacher of Suzu Suzuki
• Akio Mutou Teacher of Natsume Ooe
• Akio Mutou Teacher of Naomi Inoue
• Akio Mutou Teacher of Miki Miura

Extended

• Hanako Ikezawa Best friend of Lilly Satou
• Shizune Hakamichi Friend of Shiina Mikado 'Misha'
• Shizune Hakamichi Cousin of Lilly Satou
• Shizune Hakamichi Cousin of Akira Satou
• Shizune Hakamichi Older sister of Hideaki Hakamichi
• Shiina Mikado 'Misha' Friend of Shizune Hakamichi
• Natsume Ooe Friend of Naomi Inoue
• Naomi Inoue Friend of Natsume Ooe
• Miki Miura Friend of Emi Ibarazaki