Nombre original: キン肉マン THE LOST LEGEND
Fecha de estreno: 8 de octubre de 2021
Serie
Tiempo promedio: 30 minutos
Géneros: Acción & Aventura, Comedia
Sinopsis: In November, 2019, the planning and production of the live action version of the national hero manga "Kinnikuman", directed by Sono Sion, was in progress. "Kinnikuman" was said to be impossible to adapt but it's now said that it will be a great project. Maeda Gordon, while training at the gym, is contacted by the producer of "Kinnikuman", asking him to appear in the movie. However, there's a hidden past attached to this film and the actor begins looking into the mystery.