Kim HyoMin has numerously been mistaken as her internationally famous twin brother Kim KiBum. Kim KiBum, known mostly by his stage name Key, is from the young and fresh boy group SHINee. One look at him and HyoMin, and you can tell they're twins. Key is older by 1 minute, so it's obvious who is older. Once in a while if Key is sick, they've even had HyoMin perform for him. The fans can't even tell the difference.

Although the two are identical, their personalities are what separate the two apart. Hyo in her school, although most students think she's Key in disguise, is known to be a spicy and cool girl who gets the best grades and participates in a lot of school activities. While Key in his school is known for being protective over the other SHINee members, an umma, and also a student who gets the best grades.

But they've got a secret that will affect the SHINee members. But do you want to know what it is? I'll tell you it. They don't know Key has a sister, and Key has been hiding HyoMin from them. He has a fear that they'll hit on her, and there'll be a big controversy if that happens. So for her safety, in SHINee's world, HyoMin is a girl who doesn't exist.

What happens when one of the members step out of that world and into the REAL world where HyoMin DOES exist? And what will occur if someone, or some PEOPLE, have their eyes on HyoMin?