Park Hyeri had been dating her boyfriend Jang Dongwoo for the past couple months. 

She loves him and he loves her. A beautiful, pure love.

There relationship had no probelms at all. They relationship had them travelling up hill so she never really thought about how it'd be like going down.  However, one day her teacher gives her an assignment that gets her thinking about their relationship.

From then she trips and tumbles down hill, not knowing how to stop before she hit rock bottom.

Main protagonists:

Park Hyeri- 16 years old. Attends K-High School. She's part of a dance group at her school named Mystique. 

Jang Dongwoo- 18 years old. Attends Starlim High School. Part of a dance group at his school named Infinite.

Other Characters that appear:

Mystique. A girl dance group at K-High School consisting of a group of good friends.

Tia, Miyoung, Heeyeon, Taerin, Jihye, Soomi, Minhee, Soyeon, Hyeri.

(A/N: They don't all appear but I'm listing them out just so you know.)

Infinite. A 7 member dance group at Starlim High School.

Sunggyu, Dongwoo, Woohyun, Hoya, Sungyeol, L, and Sungjong.

(A/N: I'm not going to write a description for them. This is just a oneshot so you don't really need a description of the minor characters. You can imagine them as how they are in real life.)

Lee Tia - 18 years old. K-High School's Vice President. She' part of Mystique also, and one of Hyeri's good friends.

Ahn Daniel- 18 years old. K-High School's Secretary. Part of Teen Top a dance group at K High. Tia's best friend.