Primary

• Kana Ichikawa Daughter of Ichikawa's mother
• Kana Ichikawa Older sister of Kyotaro Ichikawa

Extended

• Kyotaro Ichikawa Younger brother of Kana Ichikawa
• Kyotaro Ichikawa Son of Ichikawa's mother
• Ichikawa's mother Mother of Kana Ichikawa
• Ichikawa's mother Mother of Kyotaro Ichikawa