The Kim family is a wealthy Korean family that owns a hospital in Korea and has two sons, the eldest is a reserved person in his work and requirements, unlike the younger son "Ji Hoon" who is a reckless person who doesn't care about his father's work and does what he wants without thinking about trouble.. ... Today was your graduation from university, you wore a short pink dress with a floral print with a knotted shoulder strap and wide white heels and your hair was loose with a knotted clip.., you went out of the building to wait for the taxi you ordered.

Suddenly, while you were waiting, two men approached you and tried to flirt with you, you ignored them, but they didn't leave you alone despite that.. At the same time, Ji Hoon happened to be in a nearby restaurant and saw what happened to you.

He came from behind you and stood right behind you and you didn't know he was there. Ji Hoon was staring at them with the eyes of a lion raging for its prey and without saying a single word. The two men started to run away... You were confused about what would happen to them? Suddenly... You turned around quickly. The person was so tall that you raised your head and he was also very muscular. When your eyes met his, Ji Hoon’s features changed from a raging lion to a cute cub… He said with a gentle smile, “Your phone number is enough. Instead of saying thank you.”