Primary

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

Extended

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