The last thing he remembered was watching his best friend on top of the stairs while he fell to the bottom of it. 

"What the hell, Hwang Hyunjin?!" he couldn't believe it and shouted inside his head as he fell. 

He thought that they were friends despite their chaotic beginnings. But just when he thought that things were going well between them, he found himself 'dead'. 

Han Jisung, a 17-year-old high school boy, woke up from a horrid stench around him while lying on a pile of hay. When he got out of the wooden shed, he couldn't recognize any of his surroundings. He should've still been at school, he was in the middle of an argument with his friend, and he remembers the pain all over his body when he fell down to the bottom of the stairs. Yet, he was completely fine in a completely unfamiliar place. 

Am I really dead? Is this heaven?

Or... is this hell?