The heroine travels to the body of a super-competent brainless queen, walking hard on the edge of a knife. She finds a way out as a chess piece in the gap between the imperial power and her family. She uses her body as a deposed queen to save her life, and realizes a comfortable life of growing flowers and grass, cooking tea and wine in the cold palace. She even escapes under a pseudonym, meets her confidant, and the sea and the sky are brighter!
