Kadokawa’s BookWalker website is listing Shachi Sogano’s Isekai Meikyū de Harem o (A Harem in an Alternate World Dungeon) light novel series as having a television anime adaptation in the works.
Shufunotomo Co., Ltd. published the first volume in print with illustrations by Shikidouji (Full Metal Panic!) in 2012.
The novel series centers on high school student Michio Kaga.
Issei Hyōju (MM!, Blade Dance of Elementalers manga) launched a manga adaptation of the novels in Kadokawa’s Shōnen Ace magazine in April 2017.