Modern woman Su Li time-travels into a book and binds with a villain-saving system, needing to maintain a vicious persona to accumulate score points to stay alive. The original character mistreated her young brothers-in-law Song Chiyun, Song Chiying, and young sister-in-law Song Chiyu, all of whom would eventually turn dark. Su outwardly acts fierce while protecting the three siblings, clashing with petty relatives, resolving human trafficking crises, earning money to support their studies and nurture their health, opening a snack shop to build a business, joining hands with Young Master Jin in commerce, resolving difficulties from people like Xinghua and Madam Li along the way, gently healing three unloved youths, rewriting their tragic fates, and bringing prosperity to the whole family's life.