In Shanghai during the Republic of China, the prosperity of the Bund was intertwined with the gloom of darkness. Shen Juan was burdened with the blood debt of seventeen lives in his family. Wrapped in nightmares and hatred, he lived a sober and painful life. He abandoned the medical tablets that Su Wan handed over like worn-out shoes, but under her breathing guidance for just ten minutes, he gained a rare moment of peace in many years - this female doctor with clear eyes who had returned from studying abroad had a strange soothing power that made him alert and irritable.
He worked step by step, secretly investigating Su Wan's life experience, exploring the secret interactions between her father and his own father, and suspected that the key token entrusted by his father was hidden in the hands of this seemingly innocent female doctor. Using her profession, her sympathy, and even the vague sense of familiarity in her eyes to draw her into his revenge game was his long-established strategy. But every time he got close, there was an indescribable hesitation and wavering hidden beneath that layer of cold calculation.
Su Wan returned to China to practice medicine, but she also had unhealed wounds. She discovered that Shen Juan's pain was not as simple as it seemed. There was an unknown purpose behind his "seeking medical treatment." Gu Ruman's reminder still rang in her ears, but she couldn't turn a blind eye to those bottomless eyes. A game with the heart as the chess and trust as the bet unfolds quietly in the dusk in Shanghai. He intends to use her to uncover the secret of the blood feud, and she tries to heal his wounds, but she doesn't know that the two of them have already been bound by fate. Every step of temptation is closer to the depths of darkness, and also to each other's salvation.
