After Dean, a third rate adventurer, got surrounded
by demonic beasts in the demonic labyrinth
he fled to a place where he found the strongest demon who devours power
The demon-fed sword Belzera, born to the Gluttony Empress Belzebuth.
After obtaining such unexpected power
he once again aims to become a first-rate adventurer like he looked up to
and delves deeper into the labyrinth. However…