1v1, both leads are each other's first and only, happy ending
Office worker Song Zhen gets into a car accident and unexpectedly wakes up as the unloved daughter of a minor official in Jiangnan.
Her legitimate older brother schemes against her to advance his career. When she wakes, a distinguished visitor from the capital is lying beside her.
He is Sima Yu, Prince of Nan'an, raised in military camps since childhood and celebrated for his military achievements. He is also the only son of the Grand Princess, noble and aloof.
He takes her into his prince's residence as a concubine and tells her to behave herself and not disturb him. He will find a chance to set her free someday.
The Prince of Nan'an takes Song Zhen as a concubine, expecting life to go on as usual. Little does he know that he will fall deeper and deeper for her.
Theme: No matter how much darkness there is, someone will always love you as they did from the start
