Primary

• Saibai Yuuki Father of Rito Yuuki
• Saibai Yuuki Father of Mikan Yuuki
• Saibai Yuuki Husband of Ringo Yuuki

Extended

• Mikan Yuuki Younger Sister of Rito Yuuki
• Mikan Yuuki Best friend of Golden Darkness
• Mikan Yuuki Daughter of Ringo Yuuki
• Mikan Yuuki Daughter of Saibai Yuuki
• Rito Yuuki Older Brother of Mikan Yuuki
• Rito Yuuki In love with Haruna Sairenji
• Rito Yuuki In love with Lala Satalin Deviluke
• Rito Yuuki son of Ringo Yuuki
• Rito Yuuki son of Saibai Yuuki
• Ringo Yuuki Wife of Saibai Yuuki
• Ringo Yuuki Mother of Rito Yuuki
• Ringo Yuuki Mother of Mikan Yuuki