At 5 PM on April 24, the sky in Guangzhou abruptly darkened, signaling the imminent arrival of a thunderstorm. Amidst this, Afei, eagerly awaiting orders, received a notification from JD's instant delivery system: For orders placed within the next two hours, there would be a grace period of 15 minutes for exceeding the stipulated pick-up and delivery times. However, it was crucial that orders be picked up within 30 minutes of acceptance, and no appeals would be entertained.