This Protagonist Is Really Poisonous

Because the novel he wrote was unfinished, Xu Guangshu passed through the book and became a cannon fodder brother. Fortunately, there is still a way to return to the real world, which is to let the protagonist ascend smoothly. But the question is, why is the protagonist a broken kid with chuunibyou? It doesn't matter, children will always grow up, but why did the protagonist get sicker and sicker as he grew up, and in the end he was accidentally bent! Xu Guangshu: "..." Among the ten villain protagonists, nine are sick, and one of them is He Qianqiu! Protagonist: "If liking you is a disease, then I choose not to treat it." Xu Guangshu: "Why are you so skilled?" Concept: Black history cannot be escaped!