The male protagonist, Chen Shu, is a modern social beast. Because he complained about a book about the son-in-law of a wealthy family, which was too intellectual, he accidentally slipped into the book and became a cannon fodder son-in-law with the same name as himself - the son-in-law of the Su family. He has a cowardly character and is bullied. In the original plot, he will divorce the heroine and be kicked out of the house, and will eventually end up miserable.
Chen Shu is bound to the "Shameless System" (the system has only one function: as long as you are shameless, others will be forcibly judged as reasonable). The system mission is to break the original plot and become the real talker of the wealthy family. Mission reward: Enhance physical fitness/wealth/skills. In the end, you can choose to leave a book or go home.
The core of Chen Shu's character design: "The main character is shameless" - he does not play according to common sense, is flexible and flexible, is good at resolving crises in a seemingly rogue, but actually accurate way, uses "thick skin" as a weapon, is not bound by worldly vision, has clear goals and strong execution ability.