The protagonist used to be a low-level office worker in the real world, unloved by both parents.
Then one day, they suddenly died and transmigrated into a novel.
The System told the Host, "Just complete the missions in these worlds, and you can return to the real world, become a billionaire, and have sports cars and handsome men at your beck and call."
As someone who had been single since birth, the protagonist happily agreed.
The villain accused the protagonist of drugging someone. The protagonist went completely crazy. While drunk, they crawled over to the villain, kowtowed left and right, clung to the villain's leg, and begged, "Please, I know you're jealous that I'm better-looking and more popular than you, but you can't frame me! I'll kowtow to you. Can you please stop accusing me?"
Transmigrated into a principal in a story about going crazy.
The protagonist went completely crazy: "Expelled! Expelled! You're all expelled! I can't let you go crazy in front of me. Expelled, expelled! If you can go crazy, then I'll go even crazier!"
The original protagonist came over and went crazy in front of them, twisting and crawling. The protagonist whipped out a water gun. "Hands up! Don't make me shoot you dead!"
The original protagonist was just about to unleash their ultimate move. They pulled out a calligraphy brush they'd just soaked in the toilet and began drawing talismans on the protagonist. The protagonist countered with a switcheroo, turning the brush from a tool for drawing talismans on them into a toothbrush shoved into the original protagonist's mouth.