Kai who was reincarnated into different world, thrown away by the corrupt church into an isolated Island full of dangerous demons. The key to survive on the island is the Kai's Cheat ability to summon a...

Masuda Keima, a lazy high-school boy who prefers to laze around and avoid working, gets summoned as a dungeon monster by a girl avatar named "Dungeon Core No. 695" who is the dungeon core of the mighty one-room...