Following his master's dying wish, Yang Donghao descends the mountain to work as a waiter at the "Yipinxiang" restaurant to experience an ordinary life. Possessing supreme medical skills, he appears cold and aloof yet is chivalrous at heart. At the restaurant, he meets the beautiful and resilient boss lady Xuanyuan Xue, helping her solve troubles such as harassment by local ruffians and business difficulties using his medical skills and martial prowess. Accidentally embroiled in the Xuanyuan family's crisis, Yang Donghao easily defeats powerful foes and wins the family's recognition. However, the black token he carries brings out a shocking secret regarding his background—he turns out to be the orphan of the Beijing Yang family, which was wiped out over twenty years ago. Facing the relentless pressure of former traitors, Yang Donghao no longer hides his strength.