Primary

• Mana Tagaya Younger Sister of Marino Tagaya
• Mana Tagaya Younger Sister of Mamoru Tagaya

Extended

• Marino Tagaya Best friend of Hiroko Yano
• Marino Tagaya Older Sister of Mamoru Tagaya
• Marino Tagaya Older Sister of Mana Tagaya
• Mamoru Tagaya Younger Brother of Marino Tagaya
• Mamoru Tagaya Older Brother of Mana Tagaya