Meet Kim Hayeon. Your normal girl, freshman in college and has a great family. But what if all of that suddenly changes? Hayeon never would've thought a lottery ticket would change everything.   

You were just roaming around the streets of Korea. You heard some noises, it sounded like a gun shot. As a curious girl you decided to check it out. What if you accidentally saw something you weren't supposed to see? Just that day were a regular girl and now you're a gang girl?! Yes you're now in a gang called Seventeen. Oh who knows what could happen next.