Gi Jun, once the ace of the internal audit team, is now stuck handling petty office scandals—all thanks to his manager, In A. One day, he receives an anonymous tip: In A is involved in an inappropriate relationship at work. Digging into her secret for revenge, Gi Jun instead finds himself drawn to her. And as In A shares her secret with him, she begins to wonder whether Gi Jun might be the one person who can help her overcome her dark past and finally find happiness. An office romance quietly blossoms within the very duty meant to chase down office affairs and corruption.