A submersion and entanglement in the night color, Shen Nanxi stumbles upon the scheme of her fiance Xie Hengzhou, but in her disheveled moment, she encounters Xie Rang, that seemingly frail and scar-covered person from the Xie family. He hides his sharpness, using tenderness as bait, approaching step by step to shelter her beneath his wings, little knowing that he is the mysterious "young master" of Yucheng who has secretly loved her for many years. The night is lingering, affection is born in secret, and they redeem each other in one another's pain, boiling ambiguity into deep love.