A Perfect Lover by Day, a Sickly, Possessive Yandere by Night

Dark romance, healing, both leads are each other's first and only, human-robot love, a groveling pursuit of his wife, obsessive possessiveness, substitute, two-faced Su Wanqing suspects that her CEO boyfriend, Gu Yehan, has a split personality. By day, he's a perfect, gentle gentleman who fulfills all her fantasies. By night, he's an obsessive, domineering madman whose possessiveness is suffocating. The two personalities seem unable to share memories. She fell in love with the man he is by day, but the man in the darkness begs her with red-rimmed eyes, “Why can't you love the real me?” Then she uncovers a shocking secret: her perfect lover is actually a substitute robot he sent in his place because he cannot be exposed to sunlight! Later, the sickly obsessive CEO goes mad with love and destroys his perfect creation with his own hands. But when the supposedly decommissioned robot returns with an awakened consciousness and confronts its creator face-to-face, she realizes she has already fallen into a desperate trap. Two identical faces: one belongs to a perfect lover programmed to order, the other to a real soul covered in wounds. Which one should she choose?