Primary

• Chiyo Iin Girlfriend of Rentarou Aijou
• Chiyo Iin Daughter of Hirotsugu Iin
• Chiyo Iin Cousin of Rentarou Aijou

Extended

• Rentarou Aijou Boyfriend of Kusuri Yakuzen
• Rentarou Aijou Boyfriend of Shizuka Yoshimoto
• Rentarou Aijou Boyfriend of Karane Inda
• Rentarou Aijou Boyfriend of Hakari Hanazono
• Rentarou Aijou Boyfriend of Nano Eiai
• Rentarou Aijou Boyfriend of Hahari Hanazono
• Hirotsugu Iin Uncle of Rentarou Aijou