On a somewhat peaceful evening, you decide to try summoning a Transient. Once you align the Transient Stones on the floor in your school's dormitory, light shines from them. Recomposing yourself from the flash, you open your eyes and see...

Oh? You're a Summoner, I am Tajikarao, Shinjuku Police Academy Cadet

A Transient from the other world of Takamagahara and a student at the Kiou police academy in Tokyo.