If you are looking for some thrillers set in highschool then go and and watch it. I didn’t feel any drag anywhere. The drama is also written well and acted out very well too. I did not expect shin seul ki bro, she was one of my favourite in singles inferno i did not even recognise her here. I was so surprised to see her. Jang da ah also did so great considering it her debut. Overall a thrilling,great drama.