Primary

• Itsuki Hinokawa Step-son of Yoshino Hinokawa
• Itsuki Hinokawa Step-brother of Jun Hinokawa
• Itsuki Hinokawa Cousin of Natsuki Hinokawa
• Itsuki Hinokawa Classmate of Kiriko Ise

Extended

• Yoshino Hinokawa Step-mother of Itsuki Hinokawa
• Jun Hinokawa Step-sister of Itsuki Hinokawa
• Kiriko Ise Classmate of Itsuki Hinokawa
• Natsuki Hinokawa Cousin of Itsuki Hinokawa