tells the story of Your love story with Song Yan which is separated by misunderstandings and suspicions. You are a female ER doctor, while Song Yan is a firefighter.

Even though they work in different fields, one day the two of them are reunited because of work after ten years of separation.

While you were sitting in your room, suddenly several firefighters came in and Song Yan looked at you sharply. He looks at you like he knows you. His friend looked at the two of you in confusion.