And to think you can actually lose the most precious thing in your life in just a second.What would you do? How would you get it back? Lee Joon is a young highschool student who has changed sense he met his girlfriend Eun Ae,they had lived happily ever after,until they get to highschool and Lee Joon meets again with his ex girlfriend Hee Young that starts to bring the old Joon back affecting Eun Ae,who as Joon,changes her personality completely when she starts to feel like she is losing Joonie,but,how far must life go so they'll learn to appreciate eachother? That's for me to know and for you to find out!