Sasaki gets the hang of his trading operation in the other world right about the time he gets in over his head in the modern world. He's (forcibly) recruited into a government agency for psychics, and his first job is right around the corner.
A grimoire?
كتاب سحري؟
¿Un grimorio?
¿Un grimorio?
Un quoi ?
Un grimorio?
Um grimório?
Гримуаром?