Shen Lie, helm of the mysterious business alliance, descends the mountain for trials, accidentally saving Su Wantang, president of Su's Biology who was set up in a hotel, leading the two into a contractual marriage by a twist of fate. Shen Lie protects Su Wantang in the guise of a personal bodyguard, successively defusing business sieges and internal betrayal, his astonishing financial power and overarching means gradually coming to light. As the investigation deepens, the truth about the murder of Su's mother years ago surfaces, and Pei Jingchuan, leader of a criminal syndicate disguised as a philanthropist, emerges. In the end, the two join hands at the global medical summit to expose his crimes, and upon the expiration of the contract, the two tear up the agreement and fall truly in love.