Salaryman no Fushigi na Dungeon

Before he even comprehends his new reality, ordinary salaryman Yamagishi Amizuna finds himself trapped inside a mysterious and bewildering cavern, coming face-to-face with a massive black tiger. Believing his life is instantly over after being mauled by the beast, he abruptly awakens back in the exact same spot, completely bewildered. Thrust into an utterly irrational predicament without any clear objective, Amizuna is forced into a brutal trial of survival where he must use his own body to level up and conquer the perilous dungeons. With each agonizing failure, he dies countless times only to be resurrected right back where he started. Refusing to succumb to despair, Amizuna meticulously learns from every fatal encounter, gathering vital clues and developing the necessary abilities to clear each stage. Driven by a singular, desperate goal to escape this insane and deadly game, the ordinary office worker must endure a relentless cycle of death, resurrection, and progression to find his way back home.