Former Xuantian Palace Master Jiang Yuan faked his death and retired, returning to the country for an arranged blind date to protect Zhao Shiling, the orphan of his late master. The two signed a contract, and Jiang Yuan transformed into a bodyguard to protect her all-around. Faced with the Zhao family's commercial encirclement and the villain Xiao Zhan's numerous conspiracies, Jiang Yuan revealed his strength as the truth unfolded along the way. The two joined hands to collect evidence of crimes, went through hardships to bring Xiao Zhan to justice, and their contractual affection turned into true love. Yet, the mysterious behind-the-scenes organization "Origin" was quietly lurking, and the crisis had not yet ended.