Loner Life in Another World (Light Novel) Vol. 2

LADY OF THE LABYRINTH Haruka has reunited with his classmates in the city of Omui, but as a loner through and through, it isnt long before their presence starts getting to him. An excursion to a dangerous underground dungeon gives him a much-needed reprieve...when he falls all the way to the bottom level, the domain of the legendary undead Emperor of the Labyrinth! But Haruka wont be alone for long--hell soon be joined by a powerful skeleton knight whos somehow also a seventeen-year-old girl!