Devourer of Oblivion's immortality

Denet, a boy who found himself in a new world—one resembling the medieval era yet filled with machinery suited to that time. He explored the room until he discovered a certain notebook. Inside it were records about this world, this place, and the people living here. After reading through it, he left the room and headed downstairs, where he met other children. They called out to him by a different name: Asfinne. Asfinne, a boy sent to an orphanage for mysterious reasons. Everything about him was shrouded in questions. Soon, Denet encountered something even more unusual: people with supernatural abilities. These individuals were known as… the Immortals. And this world—far from pure or bright—was filled with mystery, fear, and darkness.