Dungeon Busters ~I’m Just a Middle-Aged Man, but I Will Save the World Because of a Dungeon That Appeared in My Garden

In the web novel 'Dungeon Busters ~I’m Just a Middle-Aged Man, but I Will Save the World Because of a Dungeon That Appeared in My Garden,' Kazuhiko Ezoe, a bachelor running a management consultation firm in Tokyo, accidentally triggers a dungeon in his garden, leading to a global phenomenon of dungeons emerging worldwide. As governments grapple with the implications, it is revealed that these dungeons harbor a dangerous secret threatening the world's existence within a decade. This ecchi and fantasy tale explores themes of survival and mystery in a modern setting, adapted into a manga format with a male protagonist.