A family of 4. What if their numbers suddenly shot up to 17?

Meet Lee Yeon Young, the sarcastic typical teenager who is rebelling just because. Everything about her is just un-cute, except... the way she acts so nicely to her younger baby sister. Seeing the two interact, it seems like two angels fell from heaven. When she gets home and finds her house invaded by 13 boys she had never seen before, she can't promise not to swear in front of all the cameras that are flashing lights in her house.

"I TOLD YOU, SHE DOESN'T LIKE PINK!" Screaming for the umpteenth time, she wondered when those idiotic appas would get it right.
 

Lee Yeon Young

As a girl going through the adolescent stage, she is bound to have some issues (which includes throwing random tantrums and being all smart aleck). Being the one whose neither the oldest nor the youngest, she is often given the free will to do whatever she wants. Alas, that didn't turn out so well. Apart from being the most sarcastic human on earth, she knows so much about taekwando, it hurts, literally. 

Lee Yeonsoo

The cutest toddler alive! (if you say otherwise, there's a girl who would hunt you down). The youngest of the 3, she gets showered with much (deserved) love everyday. The one that brings happiness and light-headedness to everyone, she is the fairy and hope of all depressed people. With her 6 set aegyo, she will definitely stay in your heart forever.

Seventeen

Weird, freaking weird idiots. Definitely very clueless and everything in between.