Wagaya no Dungeon

is a Japanese light novel series written by Kiyoshi Amaha, with illustrations by Urabi. The series began publication on March 8, 2014 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
From a certain time, a large amount of tanjong has occurred in the world, and monsters and magic have spread to the world. It's an extraordinary world where crows and goblins scramble for household trash ...

One day in such a world, the house where the ordinary brother and sister, Higurashizaka brother and sister moved ... was a house with a huge dungeon in the basement !?

He said that he created the secret of the dungeon in the basement of my house and the dungeon. What is the secret of the "Demon King" !?

A slapstick extraordinary daily RPG action comedy full of cute monster girls!