My Room is a Dungeon Rest Stop, Volume 4 (My Room is a Dungeon Rest Stop #18-23)

After hearing the tragic story of how Ria lost her sword, Touru, Deet, and Shizuku hatch a plan to lure the adventurers who abandoned her down into the dungeon for payback! But this also leads to an incredible new discovery about the nature of Touru's apartment!