The Prince & His Mr. Lady Doctor

A doctor from the present wakes in the body of Duanmu Xuqing, the second daughter of a noble family whose property has just been confiscated and whose members have been sentenced. She binds her chest, takes a man's name, and enters the household of Long Jingxiu, a prince known for his campaigns, as his personal attendant. She keeps hidden that she carries the Sacred Body of Heavenly Fragrance. She uses modern medicine to treat the injured and repeatedly pulls people out of danger. Long Jingxiu grows attached to the attendant and is unsettled by it, believing her to be a man. Her identity comes out. After that the two of them work against the plots around the household together, with a betrothal still standing.