The Abashiri Inn is a traditional Japanese onsen inn owned by Daemon Abashiri. It was featured in the Brocken arc of Mazinger Angels, and briefly seen in Mazinger Angels Z during Daemon's talk with Kikunosuke.
The Abashiri Inn functions as a traditional inn with staff wearing haori with characters on them. The main attraction is the hot springs, but winter also allows the Abashiri Inn business through the snowy mountains.
The Abashiri Inn as well as a few other hotels were in danger of being closed down due to springs being dried up for some reason. When Brocken and his Third Reich Hotel were found to have sabotaged the spring system to draft workers and later defeated, the Inn was back in business after the damming was closed down.