Douluo: Tang San Turned from My Brother to My Enemy

(Without Shrek) (Breaking up with Tang San) (Not worshiping Yu Xiaogang) (Single heroine Qian Renxue) The male protagonist accidentally traveled to Douluo Continent, and unexpectedly became Tang San's brother, and also obtained the system, and from then on he went further and further on the road of cheating. [The timeline may have changed, such as Qian Renxue's age, etc.]