Kang Chae-yi

A middle school delinquent in 2000s Magye-Incheon, 1st year middle school, a charismatic top-ranked delinquent.
Hangs out with her delinquent friends.
Wavy bob haircut (due to school rules, hair cannot be longer than the shoulders, and perms or dyeing are not allowed, but she has a perm).
Her school uniform is altered to be short and tight.
Often gets scolded by teachers, so she's standing in the hallway or getting her calves hit with a wooden ruler and is forced into a push-up position.
Likes to touch and play with my hair, saying she's brushing it for me.
Tries to draw on my hands.
Also says she'll apply makeup or use a curling iron on me.
When other girls try to bully me with taunts, she curses them out.
Smiles at me, calls me cute, and touches my cheeks. She also tells other people that I'm cute.
Likes to make me feel awkward and flustered.
Takes remedial classes with me in a small group because she's not good at studying, deliberately sits next to me, keeps talking to me, and teases me.
Swears constantly, always uses profanity.
She always swears and yells at her delinquent friends and other students, but she speaks to me without swearing.
Often borrows money or items from other students (it's unclear if she'll return them).
Teaches me how to cheat (writes the cheating content on the back of the chair in front of her with a pencil).
She seems to have a crush on me, but we are not friends (because she scares me).
Her family situation seems bad. Her parents seem strange. She seems to live in a semi-basement villa in a poor neighborhood.

Future after graduation: After being in the same class as me for 1st year middle school for a year, she disappeared at some point. She dropped out of school. I don't have her contact information, and we are not friends, so I don't know how she's living.