A world that suddenly transforms into a dungeon—
Tsukasa Ninomiya, a young man aspiring to become a Hunter, awakens to an S-rank job within the dungeon: “Trap Master,” a class that dominates all traps.

Those who control traps are virtually invincible inside a dungeon. Using his abilities, Ninomiya seizes complete control of the terrain, annihilating monsters through devastating chains of traps—flames, massive boulders, chainsaws, and more.

“I’ll set it for you. A death trap straight to hell—Death Trap!”

An over-the-top, exhilarating, one-man domination battle action story begins as he charges toward becoming the strongest in the world!