Light novel that will have a Oneshot manga in 2018, talks about a boy who is a lover of stories, and that is summoned in a ancient dungeon called "Twillight dungeon" where met to the Undead King Astaroth, to becomes his apprentices and to learn all about magic and battle so he can be an adventurer in the future. this is his story, the story of Shimon, in the magic world of Eltera