Delivery Rider, Crushing the Gods of Another World

【Food delivery + Western fantasy + quest-based + one heroine】 I'm just a delivery rider. The things I fear most are being late and getting bad reviews. Then an “express order” from another world changed my career for good. 【Order 1】: Escort an elven princess through the Misty Forest. My plan: Open my phone's offline map, use GPS for precise navigation, and deliver in an estimated three hours. 【Order 2】: Transport “Dragonheart Lava” to the Dwarven Kingdom. My plan: Activate the delivery box's “heat-preserving rune” to keep it warm the whole way and guarantee a five-star review. 【Final Order】: Challenge the world-ending Demon God and save two worlds! My plan: ...Guys, this order is a bit much. A power bank probably won't cut it. I'm going to need a whole nuclear power plant! The customer is always right? Sorry, but around here, even the gods have to wait until I've finished this delivery!