Kim Yu Ra (Kim Hee Sun) and Jung Su Bin (Ryu Shi Won) have been best friends since childhood. Yu Ra is a fairly serious-minded woman who works on tv shows as a claymation and puppet animator. Subin is a laid-back PV producer with a nack for getting in trouble with women due to his naivete. They have always been there for each other, though never romantically involved.
As the story rolls along, this drama explores different kinds of love. Can a lifelong friendship be the basis for a lifelong love? Or is love something that comes quickly and captures the heart? Which is more important, a best friend or a new love? And will Subin and Yu Ra discover that their feelings for each other are truly that of friends? Or love....