Primary

• Shoma Shibuya Father of Yuuri Shibuya
• Shoma Shibuya Husband of Miko Shibuya
• Shoma Shibuya Father of Shori Shibuya

Extended

• Yuuri Shibuya Best friend of Ken Murata
• Yuuri Shibuya Son of Miko Shibuya
• Yuuri Shibuya Engaged to Wolfram von Bielefeld
• Yuuri Shibuya Son of Shoma Shibuya
• Yuuri Shibuya Younger Brother of Shori Shibuya
• Miko Shibuya Mother of Yuuri Shibuya
• Miko Shibuya Wife of Shoma Shibuya
• Miko Shibuya Mother of Shori Shibuya
• Shori Shibuya Older Brother of Yuuri Shibuya
• Shori Shibuya Son of Miko Shibuya
• Shori Shibuya Son of Shoma Shibuya