Primary

• Hideaki Hakamichi Younger Brother of Shizune Hakamichi
• Hideaki Hakamichi Cousin of Lilly Satou
• Hideaki Hakamichi Cousin of Akira Satou

Extended

• Lilly Satou Younger Sister of Akira Satou
• Lilly Satou Best friend of Hanako Ikezawa
• Lilly Satou Cousin of Shizune Hakamichi
• Lilly Satou Cousin of Hideaki Hakamichi
• 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
• Akira Satou Older sibling Lilly Satou
• Akira Satou Cousin of Shizune Hakamichi
• Akira Satou Cousin of Hideaki Hakamichi