Rei Aragaki

Rei Aragaki is a nine-year-old fourth grader and the beloved only child of gymnast Jotaro Aragaki. Following the loss of her mother, Rei took on the full weight of managing the household, displaying a level of independence and emotional depth far beyond what her age would suggest. She quietly supports her father through his lowest moments, never faltering in her role as the family's emotional anchor. Outside of her daily duties, Rei harbors a deep love for ninja culture and movies, and shares a warm bond with the enigmatic boy Leonardo, making her one of the story's most heartfelt and pivotal characters.