Primary

• Koubun Ka Assistant of Kougyoku Ren

Extended

• Kougyoku Ren Friend of Alibaba Saluja
• Kougyoku Ren Cousin of Hakuryuu Ren
• Kougyoku Ren Cousin of Hakuei Ren
• Kougyoku Ren Younger Sister of Kouen Ren
• Kougyoku Ren Younger Sister of Koumei Ren
• Kougyoku Ren Sister of Kouha Ren
• Kougyoku Ren In love with Sinbad