Who says there is love at first side.

Gary and Ji Hyo are classmate since young and their family are close friends. But for the weirdest reason, they were like Mars and Venus. Whenever they saw each other, they would ended up bickering. Sometimes, it was getting so bad till Ji Hyo ended crying all the way home. Both side family were puzzled but whatever they did to help them patch back, it just did not help.

In class, they were competing in result and grade. And they tried to avoid each other whenever they could as they always ended up in a huge fight. 

 The families always hope that they will be friends when they are adult. But in the end, the company that they joined are competitors.  In several occasions, they represented their companies to fight for the same project.

But how did their love started?

It started at a winter night. The weather was really cold. Ji Hyo was down with a bad flu and her family were all oversea on a holiday. She had stayed behind due to a project that was due in a few days.

When her parents found out she was sick, they called up the Kang family for help. As they knew that their daughter did not know how to take care of herself and being a career woman, she might work non stop to complete the project. 

Gary was being forced to send food and soup over for Ji Hyo. He knocked on the door for a long time, finally the door opened, Gary was shocked to see Ji Hyo in such a sick state. She was frail and he