The nomadic tribe known as Demons. Survival of the fittest at it's finest, where the weak only live as long as they find a use for themselves. Sometimes they survive by finding protection by stronger tribesmen in exchange for services, and sometimes they manage to hide for a bit. However, amidst the chaos there was some semblance of order. In the Demon tribe, you want what you need, and if you need more, you take it by force. They may not follow the ideals of other villages, but they aren't stupid. Senselessly killing each other only weakens their tribe, the one thing they hate more than anything. They welcomed anyone who would make them stronger, and anyone who would make them weaker would almost certainly die during the entrance exam, since they exam was to not die to the strongest warrior. There were of course those who simply orbited around the tribe without actually joining it. They stayed close enough where they could flee either towards or away from the tribe for protection. They often travel behind the tribe, scavenging the scraps left behind by the tribe. However, there were few who stayed ahead of the tribe. These were made up of two types of people; people strong enough to join the clan but choose not to, and insane risk takers who largely lived in fear of being caught up to or being left behind. These individuals are known in the tribe as "scouts."
Oni traveled in front of the group not for protection or greed. No, he had a much grander plan in mind. He stayed closer to the group than other scouts. Many of the scouts cover their tracks and hid any remains of their food in order to hide how much they "steal" from the tribe, however they make sure to leave enough in order to not anger the tribe. Oni, however, always left markings. He didn't leave food behind or tracks of where he was going. He left gifts for the tribe. The gifts varied from food, which was killed so that it would still fresh, to weapons, often higher grade than what the tribe wielded themselves. With each gift, a message was left behind.
Oni waited as his plan set in motion. In the cover of night, he sat and waited. His wings tightly bound by his cloak. He sat in a tree, closer than the scouts, but he was more relaxed than them all combined. All was according to plan.