Primary

• Jun'ya Mizumoto Older Brother of Misora Mizumoto
• Jun'ya Mizumoto Childhood friend of Chihaya Houjou

Extended

• Chihaya Houjou Childhood friend of Jun'ya Mizumoto
• Misora Mizumoto Younger Sister of Jun'ya Mizumoto
• Misora Mizumoto Best friend of Aino Pursiainen