At the beginning of the second year of high school, Lin Xiao, a scumbag, was transferred to the back row where the top students gathered. Just when he wanted to pretend to be transparent, he saw the class monitor secretly drawing comics, the student god writing scripts in class, and the class representative hiding his e-sports dream. In order to keep their own secrets, these "pretenders" were forced to form a "back row alliance": helping the student student with homework in exchange for script authorship rights, covering for the class monitor in exchange for comic peripherals, and teaming up with class representatives to win games in exchange for the privilege of copying notes. But when the head teacher suddenly announced that "the back row will be randomly checked to show their specialties," the "camouflage shell" of all the employees could no longer be contained.