勇者パーティーはシェルパの導きで、その深淵を覗くこととなる！
ダンジョンシェルパ――迷宮の道案内兼荷物持ちを生業とする彼ら無しでは、どんなベテランパーティーも直ぐさま絶滅へと追いやられるという。若くして腕利きシェルパとの評価を得ているロウは、ある日勇者と名高いパーティー「宵闇の剣」の依頼を受けることになる。最強のパーティーがロウという”目”を得て、タイロス迷宮を突き進む。そしてその先に待つものとは―――。
Dungeon Sherpa, a general term for those who make a living by carrying the baggage of adventurers while leading the way for them in their search through labyrinths. Rou is a young but skilled sherpa whose activities are based in Tairos Labyrinth.
Alhough Rou lost his father half a year ago and works to support his younger sister who he lives with, he is forcibly dragged into helping the hero who made a name for herself at the royal capital as the “Twilight Blade.”
