Keiichirō Yamagishi is a university student who wields psychic abilities. Alongside fellow ESPers Miyako Negishi and Haruka Saiki, he is transported from modern-day Tokyo into a fantasy world. Keiichirō shares the common trait of psychic power with the other students involved in this displacement. His specific ability is shapeshifting. Thrust into this new realm, he participates in the unfolding events alongside his companions.