There's Something Wrong with My Younger Brother in Douluo

Tang Fan traveled through the world of Douluo Continent and became Tang San's older brother, because his innate soul power level was extremely low, only level 1. But fortunately, the salted fish lying flat system is activated! Bind "Destined Protagonist" Tang San, as long as "Destined Protagonist" Tang San becomes stronger, he can receive system rewards. "Xiaosan'er, why are you so thin? Come on, take this body-building pill to strengthen your body." "Come on, Xiaosan'er, I'll give you this marrow-cleansing pill. I believe you will become a strong man soon." "Xiao San'er, I see you are already level 90. This god-given soul ring is given to you. Practice hard and become a god as soon as possible." Tang San became more and more plump and shyly took off her long hair. Tang San had a very good figure and was well-proportioned. Only then did Tang Fan realize that Tang San she was...