Primary

• Akari Tsukumo Younger Sister of Yuma Tsukumo
• Akari Tsukumo Older Sister of Yuma Tsukumo

Extended

• Yuma Tsukumo Younger Brother of Akari Tsukumo
• Yuma Tsukumo Friend of Ryouga Kamishiro
• Yuma Tsukumo Friend of Kite Tenjo
• Yuma Tsukumo Friend of Kotori Mizuki
• Yuma Tsukumo Friend of Astral
• Yuma Tsukumo Friend of Tetsuo Takeda
• Yuma Tsukumo Friend of Three
• Yuma Tsukumo Friend of Cathy Katherine