Seis

Seis is the grandfather to Keil and a flier pilot who works for an express air delivery company that services the entirety of the Hundred Isles. It's an expensive service to hire, but one that is in surprisingly high demand for both freight, passenger, and express package delivery. Seis is a senior pilot within the company, and a master aviator, flying regularly from end to end within the Hundred Isles nearly every day, and bringing with him a wide variety of things needed by the customers who hire them. Being a master aviator, Seis is also legally allowed to mentor new pilots who are always in demand to fill the slowly swelling ranks of the aviation company he works for. He even trains Keil on how to be a delivery pilot like himself, and is surprised at how quickly the young man not only picks up on his training, but also how quickly he masters it.