"Ring ni Kakero" is a Japanese manga series created by Masami Kurumada, known for its focus on boxing and sportsmanship. The story follows Kazuya Sato, a young boxer who strives to become a champion while overcoming various challenges and rivalries. The series emphasizes themes of determination, friendship, and the spirit of competition. The manga was serialized in Weekly Shōnen Jump from 1975 to 1978 and later adapted into an anime series. It gained popularity for its dynamic artwork and engaging characters, contributing to the sports genre in manga and inspiring future works in the field.