[Two male protagonists + evil yandere attack vs social fearful scum + no female protagonist]
Xu Yu, nicknamed Sparrow, is a recent graduate who lost his job after graduation. He has been living in a rented house for most of his life. His roommate Hou Xin often despises him as a worm in society. He is said to be worthless and he is given an ultimatum. If he can no longer find a job and has no money to pay the rent, he will be forced to sleep on the street.
One day, Xu Yu received an interview notice and went to the interview with great joy, only to find that it was a humiliation set up by his ex. This man who he once sent away with 500 yuan suddenly became prosperous and turned from poverty to wealth and handsomeness.