Seto had always done the nicest things for Mary. Whatever she asked. He would do. He felt obligated to. He never wants to see her sad. Even if he is sad himself. He thinks of himself as a Pierrot in a sort of way. A clumsy, Lying, and broken Pierrot. Trying to make everyone else happy. ( this is kind of based off the song Pierrot in a personality and kindness way To be honest)