Episode 9

Bath (風呂, Furo) is the Ninth episode of the Welcome to the Slave Harem in the Labyrinth of the Other World anime series.

Plot
Kaga learns that despite the overcrowding, no one has ever beaten the entire Quratar labyrinth, and the highest floor ever reached was the 91st. Kaga is disappointed at how weak the first boss monster is so he and Roxanne teleport home. To alleviate his depression, they decide to begin cultivating the neglected garden. While shopping for a clothes washing tub, Kaga realizes an extra-large tub could serve as an indoor bath in the stone room, which he hopes to share with Roxanne. As they continually reach higher floors, they are then able to teleport to without starting again from the bottom floor. The difficulty of the boss monsters increase until they reach one that is actually able to injure them with a unique magic skill. Kaga realizes he unintentionally became complacent, putting himself and Roxanne at risk. The bathtub is later delivered and Kaga is able to introduce Roxanne to bathing, and they make love, which is made more exciting by Kaga inventing soap. As Roxanne sleeps, Kaga feels guilty over letting her get injured by the last boss monster and decides they need another warrior in their party as soon as possible.