Being the new teacher in a school can be a challenge. The worst part is that you thought the school was haunted. While teaching, you could hear and feel unusual things. Do you think your students know a situation wherein it could solve the things that you feel or hear? Or are they part of it? Is it the school that is haunted or someone was just really following you?

- Class 7A -

| Jessica | Jonghyun | Yoona | Taecyeon | Victoria | Nichkhun | Sulli | Taemin | Luna |

| Onew | Ji Eun | Wooyoung | Amber | Key | Krystal | Minho | Sunny | Sungmin |

The class that you will teach. The angels to your eyes but devils to the others. They are quite mysterious. Sometimes they are quiet, sometimes they are noisy. You couldn't tell what is wrong with them.