Kou 1 Desu Ga Isekai De Joushu Hajimemashita (高1ですが異世界で城主はじめました) is a light novel written by Hiroyuki Kagami (鏡裕之) and illustrated by Goban (ごばん) published by Hobby Japan under their HJ Bunko (Media Factory) label. The first volume was released in Japan on August 31, 2013 , with a total of thriteen volumes available as of March 31, 2018, under their F MF Bunko J imprint.
Accidentally summoned by an ancient map, first year high school student, Kiyokawa Hiroto is forced by the arrogant Lord of the castle to exterminate the vampire that has been haunting his castle. Unexpectedly befriending a girl from Mummy tribe, Hiroto skillfully managed to capture the Vampire with her help. However, he is soon framed by the Lord of the castle. Bravely and kindly aiming to be a Lord, the fantasy of summoned to another world starts!
- Main article: Kou 1 Desu Ga Isekai De Joushu Hajimemashita (Manga)