Su Mo fell into a coma and was turned into cannon fodder. The superior officer Lu Changzheng made a "contract marriage". She relied on traditional Chinese medicine to gain a foothold, but was framed by "good sister" Yang Suyun and her cousin. She fell into the water, stole prescriptions, and false accusations followed one after another. Seeing the tricks, Su Mo saved the day from danger many times, and even discovered that the original owner had hidden secrets in the past - the injustice of his parents, the coveted property, and the driving force behind Yang Suyun. Is this marriage a transaction, or a shocking black and white game?