- Leader - Natori
- Principle - Calming the Orochi is of utmost importance.
- Military strength - 2/5 (no regular army, but there are small volunteer militias (the Miko fan club) defending it, as well as the great power of their leader and a highly defensible position)
The Miko Institute (巫女機関, miko kikan) is an umbrella organization over the various shrines all over JAPAN. Its headquarters, Yamatai, is a neutral territory prepared just for the Miko Institute by agreement of all the houses.
The shrine at Yamatai performs regular purification service. To put it bluntly, by H-ing with a healing miko, it reduces the corruption in one's heart. Naturally the service always attracts a huge male gathering, especially men of wealth and power. Which attendees gets to be purified is determined via a random drawing.
Unknown to the general public, this service is actually part of a system to calm the Orochi. Healing mikos are volunteers who are life sacrifices for the Orochi. The more negative emotions they absorbed through the purification service, the more effective their sacrifices will be at calming the Orochi.