It's a story about 10 friends, who were grounded by the Principal. That's when they knew about the legend buried in that school, The Suicide of The Janitor. But is it really a suicide? They decided to investigate about the death of the Janitor. Will they be able to unveil the secret behind the Janitor's death? 

Main Characters :-

- Kris -

- Able to communicate with ghosts but can't see them .

- No one knows about his ability . 

- Never share secrets with anyone . 

- Likes Amber . 

- Kai -

- Krystal's overprotective boyfriend .

- Can be really cheesy sometimes .

- Warm and cheerful .

- Have many secret admire , but he ignore them .

- Krystal -

- The school's ice princess .

- Afraid of ghosts and darkness .

- Kai's girlfriend .

- Have two older sister . 

- Amber -

- Able to see ghosts but can't communicate with them .

- No one knows about her ability .

- Never tell secrets to anyone .

- Likes Kris .

Addition Character :-

- Sehun and Sulli-

- Dating .

- The 'Playful' couple .

- They are scared when it comes to 'ghost' .

- Myungsoo ( L ) and Suzy -

- Dating

- The 'Serious' couple .

- Both of them doesn't believe in ghost .

 - Sunggyu and Eunji -

- Dating .

- The 'cheerful' couple .

- Always prank people when it comes to 'ghost' .

 - Junhyuk -

- Died .

- The school's janitor .

- Rumors said he committed suicide , but no one actually knows what had happened.