Entering a Company From Another World!?

Embark on a thrilling journey with Jiro Tanaka as he quits his exhausting job at a black company and stumbles upon a mysterious job offer from a company in another world. Assigned the task of testing a dungeon crafted by the demon king, Jiro becomes a 'dungeon tester,' facing challenges even the hero couldn't conquer. With a formidable dark elf boss possessing magic resistance, Jiro's new life is filled with action, adventure, and comedy as he strives to complete the impossible dungeon.