In the Eastern demon lands near the border to the Northern demon lands was the Gelder plains. Two gigantic demons stood guard at this border. They had large muscular bodies that were colored red and blue. They stood around four meters tall and held onto huge clubs as their weapons. Two horns were sticking out of the side of their heads. These demons were called Oni, and the two who were guarding the border were the strongest of the Oni tribe. It is rumored that in physical strength alone, they could match the strength of the mighty Lord of the Lycans Kir.
The oni brothers who were usually bored because they had nothing to do noticed a flock of the winged demons coming towards them. When the two brothers saw the sight they got a little bit excited. One of the brothers picked up a boulder and threw it at the Tengus and Harpies.
