I Was Just Doing Overtime Service At The Dungeon, But I Ended Up Pretending To Be A Wandering S-Rank Explorerダンジョンでサービス残業をしていただけなのに～流離いのS級探索者と噂になってしまいました～; Dungeon De Service Zangyo Wo Shiteita Dakena No Ni Sasurai No S Kyu Tansaku Sha to Uwasa Ni Natteshimaimashita

Hinata Watari is an ovenNorked office drone buried in endless unpaid overtime. Convinced\r\nthat "moving his body will spark better ideas," he takes an unusual detour on his way home-into a\r\ndungeon that suddenly appeared in the city. There, he vents his pent-up frustration by using\r\nmonsters as punching bags while casually exploring the labyrinth. Butjust as he's basking in the\r\nthrill of mowing down weaklings, he stumbles upon a beautiful girl under attack from a fearsome\r\nmonster! That fateful encounter turns Hinata's dull, exhausting life upside down. Thus begins a\r\nrefreshing tale of modern-day dungeon adventures and exhilarating battles!