There were two novels that started with the male protagonist committing suicide by jumping into the sea because of his girlfriend's betrayal. They were "The CEO's Favorite: Night Rose Revenge" and "After Being Scummed, I Was Saved by My Goddess Boss!" In the last novel,"Starting from Nothing," the male protagonist was betrayed and ostracized after graduation. He bought a lottery ticket and began the life of a billionaire. I hope you like this fairy's recommendation. Muah ~😗