My name is Yongguk. Bang Yogguk. I am 18. A senior and one of the baddest but also smartest boys in school.

Everyone is afraid of me. My look (aka my glare) can make anyone run for their lives.

Until that day, something struck me.

And this strange thing keeps happening to me on rainy days. 

I don't know what happened but it changed my life.

On rainy days, I transform into a kid about the age of 8?

But once the sun is up. I'm back to being a bad looking kid ever.

My umma and appa, who are both scientists have tried to figure out what struck me.

No one knows about this other than my family and other relatives.

It was suppose to be kept a secret.

A SECRET.

So no one knows about it.. Except this one girl in school..

I "accidentally" transformed in front of her... and guess what?

She fainted.

Her name?

Taeyeon. Kim Taeyeon.

One of the most quietest, unpopular girl in the school.

Why must this happen to me...!?