Gang Rim est un ange de la mort qui se prend souvent d'affection pour les êtres humains qui passent dans l'au-delà et attendent leur jugement. Kim Ja-Hong est l'un de ces hommes, d'ores et déjà considéré comme un modèle de vertu. Having died unexpectedly, firefighter Ja-hong is taken to the afterlife by 3 afterlife guardians. Only when he passes 7 trials over 49 days and proves he was innocent in human life, he’s able to reincarnate, and his 3 afterlife guardians are by his side to defend him in trial.