Primary

• Shizuku Tsukishima Daughter of Seiya Tsukishima
• Shizuku Tsukishima Daughter of Asako Tsukishima
• Shizuku Tsukishima Sister of Shiho Tsukishima
• Shizuku Tsukishima Girlfriend of Seiji Amasawa
• Shizuku Tsukishima Best friend of Yuko Harada

Extended

• Seiji Amasawa Boyfriend of Shizuku Tsukishima
• Seiji Amasawa Grandson of Shiro Nishi
• Yuko Harada Best friend of Shizuku Tsukishima
• Seiya Tsukishima Husband of Asako Tsukishima
• Seiya Tsukishima Father of Shizuku Tsukishima
• Seiya Tsukishima Father of Shiho Tsukishima
• Asako Tsukishima Wife of Seiya Tsukishima
• Asako Tsukishima Mother of Shizuku Tsukishima
• Asako Tsukishima Mother of Shiho Tsukishima
• Shiho Tsukishima Daughter of Seiya Tsukishima
• Shiho Tsukishima Daughter of Asako Tsukishima
• Shiho Tsukishima Sister of Shizuku Tsukishima