Fuyuka Ono is the daughter of Masataka Ono, adopted daughter of Coach Kudou and Endou's childhood friend. She is one of the managers of Inazuma Japan. She had an accident in the past which involved losing her parents life, because of it she got so depressed that she stopped eating and drinking which might have resulted in her death. She doesn't remember Mamoru because her childhood memories were erased so she could forget about her tragic past.