Primary

• V Older Brother of Four
• V Older Brother of Three
• V Former mentor of Kite Tenjo

Extended

• Kite Tenjo Friend of Ryouga Kamishiro
• Kite Tenjo Friend of Yuma Tsukumo
• Kite Tenjo Former student of V
• Kite Tenjo Master of Orbital 7
• Four Older Brother of Three
• Four Younger Brother of V
• Four Former enemy of Ryouga Kamishiro
• Three Younger Brother of Four
• Three Younger Brother of V
• Three Friend of Yuma Tsukumo