Primary

• Sanae Furukawa Wife of Akio Furukawa
• Sanae Furukawa Mother of Nagisa Furukawa

Extended

• Akio Furukawa Husband of Sanae Furukawa
• Akio Furukawa Father of Nagisa Furukawa
• Nagisa Furukawa Mother of Ushio Okazaki
• Nagisa Furukawa Daughter of Akio Furukawa
• Nagisa Furukawa Daughter of Sanae Furukawa
• Nagisa Furukawa Wife of Tomoya Okazaki