Primary

• Yuri Subordinate of Leo Akaba
• Yuri Alternate dimension counterpart of Yuya Sakaki
• Yuri Alternate dimension counterpart of Yuto
• Yuri Alternate dimension counterpart of Yugo

Extended

• Yuya Sakaki Friend of Reiji Akaba
• Yuto In love with Lulu Obsidian
• Yuto Friend of Shay Obsidian
• Yuto Enemy of Sora Shiunin
• Yuto Alternate dimension counterpart of Yuya Sakaki
• Yuto Alternate dimension counterpart of Yugo
• Yuto Alternate dimension counterpart of Yuri
• Yugo Friend of Rin
• Leo Akaba Father of Reiji Akaba
• Leo Akaba Husband of Henrietta Akaba
• Leo Akaba Father of Rei Akaba