Primary

• Sui Takishima Brother of Kei Takishima
• Sui Takishima Son of Satoru Takishima

Extended

• Kei Takishima Brother of Sui Takishima
• Kei Takishima Son of Satoru Takishima
• Kei Takishima In love with Hikari Hanazono
• Satoru Takishima Father of Sui Takishima
• Satoru Takishima Father of Kei Takishima