Primary

• Shinobu Okudaira Older Brother of Akira Okudaira

Extended

• Akira Okudaira Friend of Fumi Manjoume
• Akira Okudaira Friend of Youko Hon'atsugi
• Akira Okudaira Friend of Miwa Motegi
• Akira Okudaira Friend of Misako Yasuda
• Akira Okudaira Younger Sister of Shinobu Okudaira
• Akira Okudaira Friend of Kyouko Ikumi
• Akira Okudaira Daughter of Sakiko Okudaira
• Akira Okudaira Daughter of Yoshimichi Okudaira