Ding Yi is a plain-looking but intelligent and hardworking young woman. After earning a master's degree in economics, she becomes a university instructor. Certain experiences at school leave her with an inferiority complex, and she assumes she will live out her days as uneventfully as before. Then one night, she meets Lin Xihan, the drunken CEO of the HE Group, though his identity goes far beyond that. Ding Yi's kindness toward him makes him feel a warmth he has never known, so he does everything he can to get closer to her. After they overcome various obstacles and get together, Ding Yi discovers that his identity is not so simple. Is he a good person or a bad one? They love each other, yet suspect each other. Like night and day, can either become the other's salvation?
Theme: Understand love, believe in love, and wait for the light to illuminate the whole night
