Synopsis: I'm a High Schooler, But I Became an Owner of a Castle in Another World

Kiyokawa Hiroto, a first-year high school student, is accidentally summoned by an ancient map. Upon arrival, he is ordered by the conceited Lord of the castle to eliminate the vampire that is terrorizing the establishment. Hiroto serendipitously befriends a girl from the Mummy tribe who assists him in successfully capturing the vampire. Unfortunately, Hiroto is falsely accused and framed by the Lord of the castle. Despite this setback, Hiroto remains valiant and compassionate, aspiring to become a Lord as he embarks on a fantasy journey in a new world.