The day Su Wantang was bound to the system, she was dumped by a scumbag for the third time. The system said: Go to various ancient worlds to save the love-minded heroines and let them learn to love themselves. Su Wantang sneered: OK, I am best at treating this. In the first world, she dressed as cannon fodder who was physically and mentally abused by the scumbag prince. The prince said: You are just a substitute. Su Wantang packed up and left on the spot: A substitute, right? I can't even find a substitute for you. The prince panicked and knelt in the rain begging her to come back. Su Wantang passed by holding an umbrella: Sorry, I now specialize in treating love brain, not patients with advanced love brain.