In a world where dungeons have appeared across Japan, Tsukasa Fujiwara enrolls in a "Seeker Academy" designed to train dungeon explorers. However, the class he awakens to upon entry is the lowest-ranked of them all: "Porter." Though he is quickly scorned and relegated to the bottom of the social hierarchy, he harbors a secret resolve: "If I were to have another life, I’d want to master the role of 'Porter'." His true identity is the reincarnation of a "Porter" from a legendary hero's party someone who met a tragic end in another world! Wishing to overcome the Porter's greatest burden, inventory limits, he is granted two extraordinary skills that far surpass the abilities of any other class. Mastering a "dud" class in his second life, he rises from the very bottom! An exhilarating dungeon-crawling fantasy!