Douluo: I sacrificed everything for Mom, Pope Bibi Dong

I was a ex-mafia beggar in Blue star who was without money or Family because they were all killed because of me due to Gang war I transmigurated into the world of Douluo Dalu completely unaware of the plot, when it all began with Tang San who later overthrew Spirit Hall and turned Doulou into Tang Dynasty continent. I Chun Hua became son of pope bibi dong and brother of Qian Renxue thus i took an oath to protect my dear sister's future and mom from destruction by the hands of tang san