This problem originated with the head of the Baumeister household by neglecting to keep close relationships, I suppose. Maa, at least he hasn’t had to frequently meet someone this way though.” (Burkhart)
Because close relations are required, it couldn’t be helped that he had to rely on the one closest to his territory, the margrave of Breithilde. But, since the territory is physically separated by the mountain range, too many connections aren’t possible either.
Even though the founder was able to live self-sufficiently by being a hikikomori, he became an excessive hikikomori in the end.