Tsukimichi: Moonlit Fantasy: Tsukimichi (Light Novel), Vol. 20

In search of the mysterious mercenary company Picnic Rose Garden, Makoto Misumi and the members of the Kuzunoha Company take on the labyrinth of Yasokatsui. Though constantly thrown off by the strange mechanisms hidden throughout the maze, they steadily make their way toward its lower levels.

Then, while Makoto is resting at an inn, a highly skilled assassin approaches him. Introducing himself as Rokuya, the man claims to be one of the legendary “First Adventurers,” figures who played a role in the founding of the Adventurers’ Guild.

Rokuya offers to act as an intermediary between Makoto and the mercenary company. However, he also warns that his companions awaiting them on the labyrinth’s twentieth floor will stand against Makoto—?!