Xiao Yan is now a Pokemon trainer is basically what this show is about. The beginning is a bit rushed and hectic so you have to figure out why the main character Chu Mu went from escaping from assassins to playing Survivor (except Jeff Probst is evil this time) on your own.
We have three arcs in this season. Survivor Island, Survivor island 2.0 (yes I am serious), and escaping from the NIghttime Demon Palace. All of arcs have filled with combat and character development is all on the pokemons. Minor characters sometimes aren't even properly introduced (e.g. there is a girl in Survivor Island 2.0 whose name never got revealed but the MC knows her). There is also practically no soundtracks
It is hinted that we going to the Soul Hall in the next season, if we will even get that. I suspect that's when they are going to explain why the Chu family was targeted in the beginning and the relationship with his mother is gonna be explained.