Kanna Hashimoto plays Ichien, a police officer assigned to the Special Accounting Department under a "special order" to cut funding. Ichien hopes to become a police officer because of her grandmother's love for detective dramas. However, she is meticulous but has extremely bad luck. She often gets people around her into disputes and is called the "plague god". Unable to be assigned to the Criminal Division, she becomes an office worker. Ichien, who is assigned to the Special Accounting Department, is responsible for supervising the use of search fees and proposing a budget reduction plan. At the same time, she also looks at the case from the perspective of "money" and uses a unique method to guide the resolution of the incident.