Raul's aspirations of becoming a Hero were crushed when the demon king was vanquished shortly before his Hero exams. He now toils diligently at a magic emporium in the urban area. One day, Phino presents herself as a commendable job applicant seeking a part-time job, divulging her motive to achieve retribution for her father's defeat and carrying the title of the Demon King's successor: Name: Phino Previous Occupation: Heir to the Demon King Objective: Seeking Justice for My Father's Demise As a consequence, the show follows the escapades of the former Hero-in-training and the offspring of the demon king.