18 parts Complete Bestfriends since childhood until senior year. It was suppose to be a perfect year since it's your last year being in highschool, but when a car accident causes you to lose your memory, that also makes you forget about Jo Kwangmin and your feelings for him. Kwangmin tries to get you to remember him but your blinded by the small crush you formed on Youngmin.
Because of this, it spreads havoc and causes brothers to go against each other.
How will this all end up? Who will you end up with?
This is a melodrama story that consist of varieties of twist and turns and havoc scenes.