While studying in college, Sekiguchi Toshihiko's life veers off in an unexpected direction as he secures employment as an accounts clerk at Galaxy Planning. Despite the company posing as a small business, it's actually a crime syndicate. Sekiguchi's supervisor, Aguri, is a relaxed gangster who relishes in excessively violent inclinations and takes a liking to Sekiguchi, subjecting him to incessant harassment.