She Called Me Superman

In this world a man can run half the criminal underworld and still be bound by his mother's dying wish. Ye Xiao gives up his position and goes back to the old house he came from. A mother and her small daughter are already living in it, put there by a crooked property agency that took their money. He means to throw them out. What they have been through stops him, and he lets them stay, then starts standing between them and the local thugs who lean on them. The little girl decides there is nothing this man cannot do and takes to calling him Uncle Superman. When someone hurts the mother, he goes back to what he was and takes the underworld apart over a nickname.