Su Mo has been married to her mysterious husband for three years, but has never seen her true face. In an accidental blind date, she met the extremely wealthy CEO Long Zehuan. After an unexpected night, she discovered that the man who made her heart beat was actually her legal husband. She thought the other person just liked role-playing, but she didn't know that he had been guarding her secretly. From the initial temptation and suspicion to being gradually moved by his tenderness and affection, Su Mo completely fell into this contract of marriage first and love later, and finally gained a sweet love that was unique to her.