She was the frightening number one genius killer in the world, ruthless and invisible, but she was deceived and used by the organization and brutally killed. When she was reborn, she became a fat and stupid good-for-nothing female student? fat? Slim down and amaze everyone! stupid? The principal of Peking University personally visits the door to solicit! Scrap? The hacker boss licked and called idol! The medical leader begged to be her younger brother! There are even more mercenaries chasing and shouting boss! The math genius is pestering to solve it! She wanted to experience an ordinary life, but she accidentally became number one in the world, and she was escorted by a black-bellied boss who seduced her openly and secretly.