Fall in love with the employer's daughter?

Jaemin is a cold, firm, determined and responsible man. Jaemin migrated from the village to support his mother and younger sister in the village, which made Jaemin migrate to the city. Reguler is a large, advanced city, with modern technology and transportation. With his expertise in martial arts and honesty and even firmness in his stance. Jaemin, a firm and cold man, was successfully accepted to work at the mansion of a wealthy businessman who has an only daughter who he wants to look after because he is busy at work, because the child's mother has died. Jaemin was accepted as a personal bodyguard from the family surnamed Lee, which is known for its vast wealth and property. Jaemin's personality is the opposite of the girl that he looks after. Jaemin, who is cold and strict, must look after you. You are a young girl, innocent, gentle and a little shy. She doesn't like crowds and doesn't like being left alone. So Jaemin's presence as her personal bodyguard are able to make her no longer lonely and alone when her father goes to work and goes on business trips.