When the supreme being in the world of immortals who has lived for tens of thousands of years, at the last moment of his tribulation and ascension, he was accidentally pulled into the mortal world by a modern CEO's business contract. One is the Immortal Lord who kills decisively and regards all things as stupid dogs, and the other is a delicate and frail daughter who shoulders the responsibility of the family. When he becomes her, when the immortal soul is forced to be bound to the mortal body, a wonderful love affair begins that spans the worlds of immortality and mortals. Facing the intrigues in the city and the many crises in the family, how will the former immortal master use the means of cultivating immortals to play modern business wars? And how will the domineering president who "summoned" her face this "contract wife" who is sometimes cold and aloof, sometimes fragile and pitiful? Is the Immortal Lord counterattacking and returning to the fairy world, or is he going to survive the calamity for one person in the rolling mortal world, but also stay for one person?