Harem in the Labyrinth of Another World

Harem in the Labyrinth of Another World (異世界迷宮でハーレムを) is a Japanese light novel series written by Shachi Sogano and illustrated by Shikidouji. It was serialized online from 2011 to 2019 on the user-generated novel publishing website Shōsetsuka ni Narō. It was later acquired by Shufunotomo, who have published thirteen volumes since December 2012 under their Hero Bunko imprint. A manga adaptation with art by Issei Hyōju has been serialized in Kadokawa Shoten's shōnen manga magazine Monthly Shōnen Ace since April 2017. It has been collected in ten tankōbon volumes. An anime television series adaptation produced by Passione aired from July to September 2022.

Plot
Michio Kaga plays an online game that seemingly uses virtual reality. After having fun, he finds he cannot log out and has seemingly entered a fantasy world for real. Making a living by exploring a monster-filled labyrinth and by defeating and turning in bandits, he is enticed by a beautiful slave girl named Roxanne and purchases her. After treating her as an equal partner and becoming lovers with her, he is inspired to purchase more slave girls and build himself a harem.

Characters

 * Michio Kaga (加賀 道夫)
 * Michio is a human who abruptly finds himself displaced into the setting of a cheap online fantasy game, but can no longer return to the real world. His cheat abilities in the game include analyzing everything around him, enabling him to assess their strengths and weaknesses. With a perceptive mind and his skills in kendo, he is able to hold his own in this new, dangerous environment, eventually gaining five female slaves and treating them as equals.
 * Michio is a human who abruptly finds himself displaced into the setting of a cheap online fantasy game, but can no longer return to the real world. His cheat abilities in the game include analyzing everything around him, enabling him to assess their strengths and weaknesses. With a perceptive mind and his skills in kendo, he is able to hold his own in this new, dangerous environment, eventually gaining five female slaves and treating them as equals.


 * Roxanne (ロクサーヌ)
 * Roxanne is a wolfkin who becomes Michio's first slave and party member. They first met when Michio purchased Roxanne from her owner. Despite her status, Roxanne does love Michio.
 * Roxanne is a wolfkin who becomes Michio's first slave and party member. They first met when Michio purchased Roxanne from her owner. Despite her status, Roxanne does love Michio.


 * Sherry (セリー)
 * Sherry is a dwarf who becomes Michio's second slave and party member. Due to her thin ears, which makes her looks older, she was cheaper to buy. Sherry is exceptionally intelligent and frequently asked more direct or probing questions than Roxanne.
 * Sherry is a dwarf who becomes Michio's second slave and party member. Due to her thin ears, which makes her looks older, she was cheaper to buy. Sherry is exceptionally intelligent and frequently asked more direct or probing questions than Roxanne.


 * Miria (ミリア)
 * Miria is a catkin who becomes Michio's third slave and party member. Her obsession with fish led her to becoming a slave as she stole some from a sacred pond. Miria is still learning the magical language in the books, and communicates through Roxanne.
 * Miria is a catkin who becomes Michio's third slave and party member. Her obsession with fish led her to becoming a slave as she stole some from a sacred pond. Miria is still learning the magical language in the books, and communicates through Roxanne.


 * Vesta (ベスタ)
 * Vesta is a dragonkin who becomes Michio's fourth slave and party member. Vesta has been a slave her entire life due to her parents being slaves themselves.
 * Vesta is a dragonkin who becomes Michio's fourth slave and party member. Vesta has been a slave her entire life due to her parents being slaves themselves.


 * Rutina (ルティナ)
 * Rutina is an elf who becomes Michio's fifth slave and party member. She is a former noble who was forced into slavery.
 * Rutina is an elf who becomes Michio's fifth slave and party member. She is a former noble who was forced into slavery.


 * Allen (アラン)
 * Allen is a slave merchant in Vale. Having a friendly personality, he treats his slaves well and ensures they find good homes.
 * Allen is a slave merchant in Vale. Having a friendly personality, he treats his slaves well and ensures they find good homes.


 * Somara (ソマーラ)
 * The chief of the village that Michio first ended up in.


 * Hugo (ウーゴ)
 * The leader of a gang of bandits who was killed by Michio.
 * The leader of a gang of bandits who was killed by Michio.

Manga
A manga adaptation illustrated by Issei Hyōju began serialization in Kadokawa Shoten's Monthly Shōnen Ace on April 26, 2017.

Anime
An anime television series adaptation was announced on December 10, 2020. It was produced by Passione and directed by Naoyuki Tatsuwa, with scripts written by Kurasumi Sunayama, character designs handled by Makoto Uno, and music composed by Tomoki Kikuya. The series aired from July 6 to September 21, 2022, on AT-X and other networks. The opening theme song "Oath" was performed by Shiori Mikami, while the ending theme song "Shinshi no Torihiki 60-Man Naal" (紳士の取引60万ナール) was performed by Taku Yashiro and Kenta Miyake. Crunchyroll has licensed the series. An original video animation is bundled with the series' first Blu-ray and DVD box sets, which were released on November 25, 2022. Another OVA was released with the series' second Blu-ray and DVD box sets on December 23, 2022.