Sana's Pov 

''Gosh who woudn't expect that Kim Dahyuh a calm girl did that earlier, i can't believe she really did that'' Nayeon unnie said, right were all part of the Student's Council, Kim Dahyun along with her friends and BlackPink was scolded by our dearest President, but it was done minutes ago, want to know what happen earlier?, well Kim Dahyun just hit Jennie using a chair earlier causing her to knockdown, well she didin't take dahyuns word seriously, jennie was about to hit chaeyoung for talking back at her, glad dahyun hit her first   

''Yeah, i didin't expect her to do that too, she really did take her words reriously huh'' Jeongyeon adds

''Well what did she say earlier?' Jihyo asked

''Blood is red, Bruises are blue,Touch my friends and i'm sure i'll kill you'' we said at the same time, execpt for jihyo and momo who was busy eating as always 

''Really!!?'' Jihyo asked wide eye 

''Yeah, right Jihyo, what does made dahyun a very cold person?'' i asked, she sighed before answering me 

''You know what Sana, it's a bit private for her, but if you really want to know, she wrote a song expressing her feelings'' JIhyo said before singing

Sitting back at our meeting place
Remembering our memories
I start to regret everything
Now i realized my biggest mistake
That meeting you was the worst thing that happen

''Wow, it really is painful Jihyo-ah, and not to mention your voice match the song well'' Mina said

''So Dahyun's been in a past relationship before?'' i asked again

''Yeah, if your really that curios, ask her herself, i'm sure she's at the rooftop now'' Jihyo said, before i can answer she push me to the door before shutting it in my face, great, well i guess, it's not that bad to go in there

Dahyun's Pov

Pabo Dahyun Pabo i mumble while hitting my head, ugh, why did i even hit her earlier, i'm not that kind of person that uses violence, *sigh* i guess you really leave a very big impact to me huh, even though you already left me years ago, i still can't forget you, i even see you in other person, i thought while chuckling, that's why i hit her earlier she really remind me of her, and also she's bullying my friends, i hope she take my words seriously, let's just take a nap, ditching a class won't hurt right, i was about to  sleep when i heard the rooftop's door open, when i turned around to see who it is, great just great, why can't this girl leave me alone, shes really frustrating, always appearing out of nowhere

Do you have any idea who was the girl in Dahyuns past relationship Reader's? Just comment if you have any thoughs about of her