A boy with a complicated past gets transmigrated into the world of his favorite game. There was a mission he needed to take care of, however, there was his own selfish reason which made the boy immediately accept the offer. He wanted to save the losing heroine. The yandere of the game who was destined to lose and die a miserable death. While fulfilling the mission for which he was sent, the boy decided to make the losing heroine fall for him. After all, in this world she needed no one but him~
