Hell Task: Bosuke's Errand

In this dark age when the "spirit stars" have fallen and monsters roamed the land, people lived under the threat of "apostles," messengers of evil. An apostle appears in a certain town, and the people are forced to hide in fear. Then, a mysterious boy, Bousuke, appears......! A dark fantasy story that opens in grand style! (Source: Shonen Jump Plus, translated)