Survival in Another World with My Mistress! (Manga) Vol. 8 -

With Arichburg successfully recaptured, Kousuke, Sylphy, and the girls treat themselves to a night on the town! After a late-night black out, Kousuke finds himself held captive in a strange prison! Will his incredible crafting skills allow him to tunnel his way out, or will it be up to his mistress to free Kousuke from bondage?!