Primary

• Yuuma Kuga Teammate of Osamu Mikumo
• Yuuma Kuga Teammate of Hyuse
• Yuuma Kuga Teammate of Chika Amatori
• Yuuma Kuga Former Enemy of Hyuse

Extended

• Chika Amatori Teammate of Hyuse
• Chika Amatori Teammate of Osamu Mikumo
• Chika Amatori Teammate of Yuuma Kuga
• Chika Amatori Teammate of Shiori Usami
• Chika Amatori Student of Reiji Kizaki
• Osamu Mikumo Teammate of Yuuma Kuga
• Osamu Mikumo Teammate of Chika Amatori
• Osamu Mikumo Teammate of Hyuse
• Osamu Mikumo Teammate of Shiori Usami
• Osamu Mikumo Former Enemy of Hyuse