魔迷宮で魔獣に囲まれた三流冒険者のディーン。彼は逃げ延びた先で、力を喰らう最強の悪魔・暴食妃ベルゼビュートから生まれた魔喰剣ベルゼラと出会うのだった。思わぬ力を手にしたディーンは、憧れの一流冒険者を目指し迷宮の奥へと進むのだが――!?
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…
