Primary

• Wataru Shiki Step-son of Mafuyu Kimishima
• Wataru Shiki Grandson of Jessica Natsuki Kimishima
• Wataru Shiki Son of Aki Yatsumiya

Extended

• Aki Yatsumiya Mother of Wataru Shiki
• Mafuyu Kimishima Daughter of Jessica Natsuki Kimishima
• Mafuyu Kimishima Step-mother of Wataru Shiki
• Jessica Natsuki Kimishima Mother of Mafuyu Kimishima