Primary

• Naoyuki Okazaki Son of Shino Okazaki
• Naoyuki Okazaki Father of Tomoya Okazaki
• Naoyuki Okazaki Grandfather of Ushio Okazaki

Extended

• Tomoya Okazaki Grandson of Shino Okazaki
• Tomoya Okazaki Father of Ushio Okazaki
• Tomoya Okazaki Son of Naoyuki Okazaki
• Tomoya Okazaki Husband of Nagisa Furukawa
• Ushio Okazaki Daughter of Tomoya Okazaki
• Ushio Okazaki Granddaughter of Naoyuki Okazaki
• Ushio Okazaki Daughter of Nagisa Furukawa
• Ushio Okazaki Granddaughter of Akio Furukawa
• Ushio Okazaki Granddaughter of Sanae Furukawa
• Shino Okazaki Mother of Naoyuki Okazaki
• Shino Okazaki Grandmother of Tomoya Okazaki