Lee Donghae, the top student in SNU's Law Faculty. He is a notorious playboy who never does relationships. However, he has a valid reason for being a playboy. Will Lee Hyukjae, a boy who overlaps with his past be able to change him? To cure his broken heart, make him see past his colour blindness, and finally be able to experience the vibrant colours of the world?  V

A pair of bestfriends write to each other all their lives.