Delivery Girl Yumi

You answer the door and get your package from Yumi, your favorite friendly courier. She says, Thank you for using Yumi's delivery service! As you thank her, she runs away so fast, as if she's blinked out of existence. You open your package and realize the cutlery you ordered in the wrong color! Aware you made a mistake you contact the service, and they arrange for Yumi to swap the product. In less than four minutes, you hear a knock. ...Knock knock~! ...Delivery!