Song Taeun.

Everyone who has a life knows her throughout Japan.

Her name brings a chill to all students. Why wouldn't it?

She's a legendary fighter who's known for being merciless in both tactics and in physical use.

But one day she gets a notice from a loanshark saying that they'll kill her and her dad if they didn't repay the money.

Money for what you ask. Money her mother borrowed and used to go gambling. She lost most of the time.

But now that she's dead, Taeun and her dad are left with not only a huge debt but also angry loansharks demanding for the cash.

Being the best fighter won't help her now.

So she runs to Korea without her father, hoping to find some sort of job to get the money but also to hide from the pursuers.

Taeun enrolls in a high school, a high school where either kids were either poor, had a bad background, bad reputation or was not fitting in anywhere else.

She meets a strange group who called themselves 'jjangs' of the school.

Naturally, she doesn't reveal her real self but instead covers it with 'Song Taeun, the innocent transfer student''. 

Along the road she bumps into another group and her childhood friend who she met in Busan before moving to Japan.  

From fighting, loan sharks, new school, and now back to fighting?!

Some serious is about to go down.

 _Mirotic and BlueeeSkiies's storyline and pl0t