Ame no murakumono manga

Ame no Murakumono summary:

There is an ancient government office, which was first founded by Queen Himiko, to deal with difficulties arising from supernatural forces. Even today, that agency secretly exists and deals with curses and other dark forces that threaten Japan. Kushinata Orochi is skilled in these supernatural arts, and he and his physically powerful sidekick Ayame take on cases that deal with supernatural troubles. Now, they have a very ancient and powerful force to deal with in Kageyama City...