Modern Dungeon – A Tale of a High Schooler with Abnormally High Initial Luck, Becoming the Strongest Using Skills Obtained from Canned Gacha

A world where dungeons have become familiar. A regular high school student, Taira Ichino, mutters while holding a can he got from the Osaka Umeda Dungeon, "If only I had my own dungeon..." and then the lid opens...!?