This is Not a Business Expense!(2019)

This is Not a Business Expense! is a Japanese drama series following Sanako Moriwaka, an accountant at a soap company who uncovers hidden truths through her meticulous review of employee expense receipts. Each slip she examines—marked only with amounts and brief justifications—reveals far more than numbers. Sanako's sharp eye detects suspicious patterns and personal struggles lurking behind routine business expenses, transforming mundane paperwork into a window onto her colleagues' secret lives. As she pieces together clues from receipts and bills, Sanako finds herself drawn into the complicated circumstances of those around her, discovering that every transaction tells a story worth investigating.