After Lin Wanxing, an ordinary working girl, was rejected for her confession, she still had frequent intersections with the cold-hearted CEO Lu Jinchen due to projects, and gradually fell into ambiguity and excitement while working "overtime" together. However, the intervention of the wealthy daughter and the misunderstanding between "Bai Yueguang" made her mistakenly think that she was just a substitute, and she chose to take the initiative to break off the relationship. When their emotions were out of control, the two faced off and the truth was revealed - the so-called Bai Yueguang was actually a relative, and Lu Jinchen had been secretly in love for many years. The misunderstanding dissipated, the relationship reversed, from ambiguous temptation to two-way love, they finally crossed the identity gap and headed for a sweet ending.