I am Su Qinghuan, an inconspicuous concubine from Su Mansion. I was frail since childhood and was fostered in a courtyard on the outskirts of the city. My aunt did not want to marry the rumored cold and taciturn Marquis of Yongning, Gu Yanci, so my aunt threatened me with the livelihood of an old nun in another courtyard and forced me to marry her instead. On my wedding night, I discovered that this cold-faced prince was somewhat similar to the boy I met and helped when I was young - but I lost my memory in an accident three years ago, and I can no longer remember the details of the past. Gu Yanci treated me with alienation but hidden concern. He would silently stay by my bedside when I had nightmares, and would quietly support me when I was being challenged. I also quietly fell in love with him while we were getting along day after day. Until a certain accident, I saw the old handkerchief he collected. The green plum pattern embroidered on the handkerchief was exactly the same as the one I had embroidered before I lost my memory. It turns out that our fate never started from a substitute marriage. The old relationship that I had forgotten is quietly rekindling as the memory fragments are pieced together.