This is a oneshot story wherein a girl named Lee Ah Young tries to  confess to her unrequited love since childhood.... "Leeteuk" also known as "Idiot".

As she tries to practice confessing to Leeteuk using her older brother Lee Donghae as replacement for Leeteuk, she keeps on worrying about what will happen

first is : "What if Leeteuk doesn't like me back? What will happen to the friendship that I've been trying to build up those years?"

second is: " Let's say that Leeteuk does like me back but what about the tons of glares and torments courtesy of Leeteuk's fans?"

For her confessing is the hardest thing to do. Saying those 3 letter word I LIKE YOU took her a lifetime to say. Now that she has a chance what will happen?