Dr. Koto Shinryoujo summary:
At first glance, Arashi Mikami appears to be a normal, albeit socially awkward, 17-year-old high-school student.
Kazami Shingo was summoned into another world. The purpose for that summoning was "to make the territory more prosperous." To sum it up, it's a typical "summoned into another world thingy" -is what Kazami thought at the time.