21 parts Complete "If I didn't saw Jia unnie seducing Mark oppa,this revenge won't happen." -Yuri/Krystal.
"If Jia didn't broke up with me,She won't transfer school.And I am here being hurt by Jia,because she hate Yuri.And then this revenge won't happen." -Kris/Kevin.
"If on that day,I walk off from Jia and ignore her.Yuri's revenge won't happen" -Mark.
"If I didn't seduce Mark near them,maybe Kris won't even transfer here.And Yuri's revenge won't happen." -Jia.
"If I didn't bring her to the stairs to meet Mark,maybe this revenge won't happen.But looking at her smilling at Kevin,It seems like she found her happiness." -Gary.
"If I knew this was going to happen,maybe I would told her to stop this revenge and make her happy.If she's happy,I am happy." -JiHyo.
"If I was there to help Gary,maybe noona won't do this and didn't changed.If noona happy,I'm happy."-Yoseob.
"If I was supporting her and talk to her that day,maybe she won't do this.But I only seek for her happiness now.If she's happy,I'm happy"-Tiffany.