最高難度迷宮でパーティに置き去りにされたＳランク剣士、本当に迷いまくって誰も知らない最深部へ　～俺の勘だとたぶんこっちが出口だと思う～

The swordsman, Jir, had just joined a well-known S-rank party when he finds himself stranded all alone in the hardest labyrinth. Normally, there's no way to survive such a situation other than to wait for rescue. Relying on nothing but his heroic sword skills, Jir decides to escape on his own! "Heh! You're all bark and no bite, Labyrinth!" he boldly declares. Due to his extremely poor sense of direction, he's completely unaware that he's headed towards the deepest level where the labyrinth boss awaits!! (Source: Manga UP!)