Accidentaly 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!" (Source: Wakga)

Kou-1 desu ga Isekai de Joushu Hajimemashita has been published digitally in English as I'm a High Schooler, But I Became an Owner of a Castle in Another World by Fantasista through Manga Planet since January 11, 2022.