Primary

• Hazuki Kudou Mother of Asahi Ookaito
• Hazuki Kudou Ex-wife of Masashi Ookaito
• Hazuki Kudou Sister-in-law of Miyo Saimori
• Hazuki Kudou Older sister of Kiyouka Kudou

Extended

• Miyo Saimori Childhood friend of Kouji Tatsuishi
• Miyo Saimori Cousin of Arata Tsuruki
• Miyo Saimori Step-daughter of Kanoko Saimori
• Miyo Saimori Sister-in-law of Hazuki Kudou
• Miyo Saimori Wife of Kiyouka Kudou
• Miyo Saimori Daughter of Sumi Usuba
• Miyo Saimori Daughter of Shinichi Saimori
• Miyo Saimori Half-sister of Kaya Saimori
• Kiyouka Kudou Uncle of Asahi Ookaito
• Kiyouka Kudou Subordinate of Masashi Ookaito
• Kiyouka Kudou Superior of Yoshito Godou
• Kiyouka Kudou Younger brother of Hazuki Kudou
• Kiyouka Kudou Husband of Miyo Saimori
• Masashi Ookaito Superior of Kiyouka Kudou
• Masashi Ookaito Father of Asahi Ookaito
• Masashi Ookaito Ex-husband of Hazuki Kudou
• Asahi Ookaito Nephew of Kiyouka Kudou
• Asahi Ookaito Son of Masashi Ookaito
• Asahi Ookaito Son of Hazuki Kudou