For decades, enigmatic dungeons have emerged across the globe, significantly altering human society and turning life inside out. In this realm, Tsukasa Kisaragi, a high school student and dedicated dungeon explorer, carries a lingering regret.
When he initially obtained his explorer's license, his social anxiety hindered him from joining teams or forging friendships. However, fate or chance bestowed upon Tsukasa a remarkable talent for dungeon exploration. His prowess was such that he could effortlessly conquer any dungeon single-handedly, eventually earning him the prestigious EX-rank status – a title so scarce, it could be counted on fewer than a handful of fingers.
Despite his extraordinary abilities, Tsukasa chose to keep his identity隐蔽, leading a humble lifestyle. That changed one day when he stumbled upon dungeon streaming – an event that would irrevocably alter the course of his life.
