Jonghyun must learn to come to terms with his death and figure out how to get into heaven. Recalling his memories and learning all about his past life proves to be a hard task, but it's nothing his guide, Key, can't help with. 

Kyuhyun's a rich kid who has everything he could ever want. Changmin's a poor kid who has work hard for what he wants. They're constantly separated by life's difficulties. Will they defeat the odds, or learn to move on?