Security guard Lin Xiao dies suddenly after staying up all night reading a novel. He wakes up inside the novel as its blond-haired delinquent antagonist, who shares his name, and is bound to the Model Student System. The original Lin Xiao was Jiang Linxue's childhood friend, obsessed with school bully Lu Ting and notorious for bullying Jiang Linxue. His fate is to be killed by the novel's original male protagonist, Ye Xiu. To survive, Lin Xiao turns over a new leaf, studies hard, does good deeds, and unlocks some of Ye Xiu's abilities. After dyeing his hair black again, he protects Jiang Linxue and repeatedly helps Tang Ruonan, Jiang Linxue's father, and businesswoman Xiao Wansheng overcome their crises. Ye Xiu realizes that his powers are being stolen and flies into a rage, coming after Lin Xiao to kill him. After resolving the female leads' crisis of trust, Lin Xiao maxes out his combat stats, opens the door, and faces his enemy, leaving their showdown on a cliffhanger.