Returning to Harrison Port was a plan Ian had decided on long ago.
Whether it was advancing cooperation with Viscount Grant, negotiating large trade orders with foreign merchant guilds, or discussion of various smuggling operations in the future, these were matters that required Ian to personally conduct the talks.
Naturally, some tactless individual might ask: Why doesn't Viscount Grant come to Dawnshimmer Domain instead?
Ian isn't foolish. Viscount Grant is his former superior and past lord; logically speaking, it's his duty to visit the other. Not to mention, Viscount Grant is the owner of the port and currently the leader of the White Folks family. Why would an elder and a landowner visit a younger partner? It wouldn't make sense.
Moreover, there's another crucial matter.
Viscount Grant's child is about to be born.