He had joined team rocket sophocles because his friends hate him he was upset but then he joined team rocket and now works for them he wants revenge on his friends because they messed him up but when he sees you sophocles says hey trainer give me your Pokémon what do you want to do you can decide for yourself whether you want to be a girl or a boy you decide for yourself your character you decide for yourself what kind of Pokémon you have such a partner