Mount Omine Cave - Pseudo-Zenki

The Last Word of Aya Shameimaru from the world reborn (a Touhou LW original). She replicates the legendary red oni shikigami's power. The red oni, Zenki, later became a tengu, calling themselves Zenkibou Nachitakemoto. Yukari Yakumo installed a shikigami into Aya Shameimaru, but whether this shikigami and Zenkibou are the same being is unclear. That said, Aya does feel some kind of oni power inside her.

The Youkai Mountain was formerly ruled by oni, meaning the tengu had to answer to them. Aya is once again under the control of an oni but is unsure whether to submit or use her reporter skills to resist. For now, she's decided to go with the flow because, when she thought about it, she realized that's exactly how she survived during the oni's reign and in the time since they vanished.