Ayakashi Triangle

Most people are unable to perceive the strange, supernatural entities known as ayakashi. Although many of these beings are harmless, some attack humans to feed on their life energy. Exorcist ninjas are responsible for defending people from these malevolent spirits. Matsuri Kazamaki, a young exorcist ninja from a prominent family, is one such protector. His childhood friend, Suzu Kanade, is an ayakashi medium with a strong aura that attracts these beings. While Suzu wishes to be close to the ayakashi, Matsuri sees them all as threats and wants to keep her away from them. One day, they encounter Shirogane, the "King of Ayakashi," who aims to consume Suzu. Matsuri rescues her just in time and successfully seals Shirogane’s powers. However, before being defeated, Shirogane retaliates by transforming Matsuri into a girl.