Shu Cheng, the daughter of the first aristocratic family of Shu, had to pretend to be a boy in order to hide herself. She wanted to promote the peerless Shen Ye as the oiran of the world, but found that Shen Ye seemed to have multiple identities, and it was difficult to distinguish between enemies and friends. In the center of the turbulent power, the two must work together, and the opposition of identities makes them the closest enemy. Adapted from the novel "Ye Cheng Fu" (夜城赋) by Xi Ge (熄歌).