Primary

• Tatsuo Kusakabe Father of Mei Kusakabe
• Tatsuo Kusakabe Father of Satsuki Kusakabe
• Tatsuo Kusakabe Husband of Yasuko Kusakabe

Extended

• Mei Kusakabe Younger Sister of Satsuki Kusakabe
• Mei Kusakabe Daughter of Yasuko Kusakabe
• Satsuki Kusakabe Older sister of Mei Kusakabe
• Satsuki Kusakabe Daughter of Yasuko Kusakabe
• Satsuki Kusakabe Daughter of Tatsuo Kusakabe
• Yasuko Kusakabe Mother of Mei Kusakabe
• Yasuko Kusakabe Mother of Satsuki Kusakabe
• Yasuko Kusakabe Wife of Tatsuo Kusakabe