A comedy about work style reform for you who will continue to fight against society tomorrow! Nikaido Yu, an office worker obsessed with efficiency, was fighting against the absurd rules of his company again today. However, on his way home, he loses his life in an unexpected accident. When he comes to, he finds himself on a train heading to the afterlife. Yu efficiently comprehends the situation, and Oniki, the demon of hell, tells him about work style reform in hell, where harassment is even more rampant than in this world!!