When does Ultimate Muscle return?

The manga is one of the best-selling manga series in Japan, selling over 77 million copies by 2021. It follows a superhero who must win a wrestling tournament to retain the title of prince of Planet Kinniku. The manga was originally published in Shueisha's sh?nen manga magazine Weekly Sh?nen Jump from 1979 to 1987. It was first adapted by Toei Animation into a 137-episode anime series broadcast on Nippon Television from 1983 to 1986. It restarted publication in 2011.