Erakino is the player-controlled character in a tabletop RPG. The actual player is the "master" she always asks to roll the dice.
In the fashion of tabletop RPG, her "mind control" skill simply modified the status of an unit from [enemy] to [friend], it didn't alter their memories or mindset...
He's not just any regular old yokai but the former god of this land before the snake took over. Since gods thrive on faith, my guess is making himself a kin of her granted him an anchor to real world without being directly worshipped.
The thing is, there's nothing left on the east mountain beside Jurota's monument which holds no spiritual value (it's the grave of Jurota and Koharu as a human). The former sealing site of the snake's body was cut off from real world by Dara-san so nobody could access it unless going through her...
Overall it's not that important anyway, since most of the families either didn't have any important roles or already fulfilled their duties. Only three families still maintain their roles: Hatahiro, Misogiya, and Yoinara.
Second this.
Typography is a specialized skill. Doing it without proper understanding is like typesetting manga with Times New Roman, or writing formal letters with Comic Sans. Even among authors there's very few who can do cool sh!t with text effect (and if they do, you'll need considerable...
Adult nobles can go anywhere they want, only children are restricted to the noble quarter. Provincial nobles live closer to commoners so they have no such restriction.
In general nobles choose to not go to lower city because it stinks to high heaven. They also need to maintain a show of...
Well then, how about all three of them just walk away and let her deal with that life issue by herself? Remember that they're not related to her whatsoever, yet risking their lives for a stranger with zero reward.
If someone chopped off your hair and you couldn't even react until the deed was done, then yeah, better back off because he could do the same to your neck.
Given the nine families are getting introduced by numbering order, I guess the couple were ancestors of Irako Miwa. Also it explained why they picked the name 五十子 Irako (50 children) -- they just wished to have kids.
It's be a bit easier if you know some kanji for numbers. Basically there are nine branch families created from Jurota's blood, each took the word 十 (10) from his name to put into their family names, numbering from 10 to 90.
十御田 Tomita (10) is the landowner of eastern mountain, managing Jurota's...
Any creatures with mana (humans included) will crumble apart shortly after death, or as soon as their feystones are removed. That's why they need to keep it fresh while harvesting other materials.
There's no way she could be possessed when Nagi/Saeko was with her. That girl can purify the land simply by walking around. Remember the pool chapter when Dara-san commented that the area was unusually clean, just because she worked there as lifeguard.
IMO you should check out official LNs to keep terminology consistent.
For example, "starbond" ceremony should be "starbound" because (minor spoiler) Or "scholars" is better fit than "civil agents," as the scope of their duties are much wider than just government paperwork.