Pokémon: I Choose Mewtwo at the Beginning

Su Yi found out that he turned into Xiao Zhi!Travel time is sixteen?Is it just the end of the Caiyou Conference?The next goal is to fight the development zone?
At the beginning of the game, you can choose a mythical beast as your guardian, keep traveling, you can keep checking in and get rewards in the system!
The master of free life, the negative EQ, the straight man in the late stage of cancer, forever ten years old, the level of the new region is cleared... These will no longer exist!
(ps: There is a system, elves have levels, multiple female protagonists, starting from the battle development area, different Xiaozhi, the real Zhiye!)