Yukito Urabe is the son of a cult founder who worships the omnipotent god, Mitama. To become the next guru of the organization, Yukito participates in a ritual, but it ends up costing him his life. In his final moments, he wishes to be reincarnated in a world without gods and religion.

Just as he desired, Yukito wakes up in a village in a strange and godless world. While gradually bonding with the people around him and adjusting to his new life, he soon discovers this world's grisly reality. As citizens of the ruling empire reach a certain age, they are legally obligated to take their own lives. Furthermore, the villagers that Yukito has grown to know are deemed abnormal by the government for their fear of death.

When Yukito and his newfound friends face execution for disobeying orders, Mitama—the god from Yukito's past life—appears before him and saves them. Clear proof of Mitama's existence reshapes Yukito's warped perceptions, and he realizes that the faith he despises is the key to protecting his new life. Using his previous experiences to create a Mitama-centric religion, Yukito seeks to unite the people under a common ideal to fight against the empire's unjust rule.

[Written by MAL Rewrite]