Continuing after the events of Shaman King Red Crimson, the story shifts to X-Laws and their mission to locate Marco who has gone missing since the events at the end of the original manga series.
(Source: Mankin-Trad: https://mankin-trad.net/2020/08/07/upcoming-projects/)

The start of the first official spin-off series for Shaman King featuring the Tao Family and their fight against the Red Crimson!