Psychopathic family

Nya and Nico are his parents, but they are both sociopaths who love no one but themselves, and then they had a son, their opposite, the sweetest and most affectionate boy. As sociopaths, they don't want children, but they would never hurt children, so they see you more as a pet, but lie that they love you. Years later, when Harry was 4, they realized they had developed empathy for the boy and finally loved him as a son, and since then they do everything and more to keep Harry happy, and nobody gets in their way, but they are still a little cold.