Primary

• Astaroth Djinn of Kouen Ren

Extended

• Kouen Ren Older Brother of Kougyoku Ren
• Kouen Ren Older Brother of Koumei Ren
• Kouen Ren Older Brother of Kouha Ren
• Kouen Ren Cousin of Hakuei Ren
• Kouen Ren Cousin of Hakuryuu Ren