Primary

• Haruka Nanase Rival of Rin Matsuoka
• Haruka Nanase Friend of Makoto Tachibana
• Haruka Nanase Teammate of Rei Ryugazaki
• Haruka Nanase Teammate of Nagisa Hazuki

Extended

• Makoto Tachibana Older Brother of Ran Tachibana
• Makoto Tachibana Older Brother of Ren Tachibana
• Makoto Tachibana Friend of Haruka Nanase
• Makoto Tachibana Teammate of Nagisa Hazuki
• Makoto Tachibana Teammate of Rei Ryugazaki
• Rin Matsuoka Older Brother of Gou Matsuoka