Primary

• Takuya Arima Father of Yuno
• Takuya Arima Father of Kanna Hatano
• Takuya Arima Son of Ayumi Arima
• Takuya Arima Lover of Mitsuki Ichijo
• Takuya Arima Partner of Eriko Takeda
• Takuya Arima Best friend of Masakatsu Yuuki

Extended

• Ayumi Arima Grandmother of Yuno
• Ayumi Arima Grandmother of Kanna Hatano