Primary

• Satsuki Kiryuin Sister of Ryuuko Matoi
• Satsuki Kiryuin Daughter of Ragyo Kiryuin

Extended

• Ryuuko Matoi Friend of Mako Mankanshoku
• Ryuuko Matoi Friend of Senketsu
• Ryuuko Matoi Sister of Satsuki Kiryuin
• Ryuuko Matoi Daughter of Ragyo Kiryuin
• Ragyo Kiryuin Mother of Satsuki Kiryuin
• Ragyo Kiryuin Mother of Ryuuko Matoi