I am now KoS in Overthere- how to improve faction?

[Kavious]

They are all greedy vendors there, not the best merchants to be using

You can also use the bank while max kos

Theres a wiki page on the faction: https://wiki.project1999.com/Venril_Sathir_(Faction)

Killing VP dragons is the best way to fix faction, but thats usually not viable to most

[Danth]

Been hunting in Karnor, Kaesora, or Charasis? Fighting in any of those zones will tend to cause a player to wind up decidedly unwelcome in the Overthere outpost.

Danth