Meet  Eun Hee. Pretty, independant and strong-headed girl. Her life was totally perfect till she met a certain someone. Chansung. A famous singer from a band called 2PM. Chansung, an egoistic and masochistic man who thinks the world revolves around him. They bumped into each other one day and were fighting like cats and dogs but as they keep bumping into each other , they never knew that  love might blossom.