Yamada , a 35-year-old single man, wants to build his ideal second home in the village of another world. A life that combines the best of both the other world and reality

Yamada Tatsuya, a humble middle manager, is grinding away at his daily corporate job. One day, his beloved grandfather passes away, leaving him a house in his will.

After moving into the inherited home, Yamada decides to enter the one room he was always forbidden from accessing. To his shock, the room connects to a house in a frontier village in another world—where a small girl awaits him.

She reveals that his grandfather was a legendary archmage in that world. Inspired by this revelation, Yamada chooses to carry on his grandfather’s legacy and live as a modern-day wizard.

While juggling his usual overworked corporate life, Yamada studies magic with the girl and a black cat familiar. Eventually, the village chief of the fantasy world asks him to become the next village leader.

Yamada dreams of developing the village and enjoying a slow life in the other world. But as a mere section chief in a small company, he lacks the money and time to make that dream a reality.

Then he learns about the exorcist industry—a hidden world in modern society that his grandfather was part of. Discovering that it offers huge financial rewards, Yamada sets out on a path to turn his life around…