Tensei Shite High Elf ni Narimashitaga, Slow Life wa 120-nen de Akimashita - Highelf with a Long Life - Ch. 47

[Kathartes]

Considering the spirits have offered to level cities, split islands in twain, and more? I imagine they'd be more than happy to play carrier pigeon for him if he asked nicely lol

In general, they can't do it over long distance. Spirits have very weak individuality (or simple-minded) coz the burden of memories reduce their ability to wield power of nature. Giving them a complex instruction and they'll forget it soon enough. The exception is when they have a strong fixation on something during their high elf's lifetime such as the spirit of Salyx coming to check on his rascal grandson later, but anyway nobody would get obsessed with mail service.

but i am worried about his halfelf son to wait so long for him to show up.

Wynn specifically didn't want him to come though. The boy understood that his dad's power shouldn't be used for something as triffling as the scuffle among mortals, so he always writes in his letters that everything is fine. Only when the problem turns out to be immortal that he'll ask Acer for help.

 

[Arcara]

This manga man, casually throwing shit like Half a Year Later in not even one page, one freaking panel