Im Yoon-ah

A highly trained special ops agent goes off the grid after being framed for murder, and is hired as a bodyguard when the powerful and influential father of a troubled girl sees his skills.

French chef Yeon Ji Yeong wins a top competition but mysteriously lands in Joseon Dynasty, where she must cook fusion royal cuisine for a tyrannical king with an extremely sensitive palate.

The hotel heir and the best employee twisted to change the standard of service and undertook to implement the concept "You will be sincerely smiled at in King". King is the name of the company and a metaphor for addressing guests as kings.