Jong Suk gets into an accident and falls into a coma, his soul wonders off and follows his friend Kim Woo Bin who comes to visit him at the hospital. And he learns a lot of things he didn’t know about Woo Bin. He watches Woo Bin cry, looking at Jong Suk’s picture on his phone. He watches how Woo Bin ignores the calls from his girlfriend and instead sits by Jong Suk’s bed whenever he has free time. He always holds onto Jong Suk’s hand and kiss his cheek before leaving the room. He learns Woo Bin’s secrets hiden well from the world around him, secrets that no one, not even his closest friends or his girlfriend knows. When Jong Suk wakes up, Woo Bin is the one staying by his side, helping him recover, step by step, taking care of everything from washing his body to clothing him, feeding him. Will Jong Suk tell him his secrets too? The reason he wanted to leave this world, and the reason that made him want to live again....