Ethereal Enigma

Ethereal Enigma is an adventure visual novel in anime style. Returning home from his first day of high school, our protagonist encounters a strange woman who encourages him to make a wish at a shrine. Although he is skeptical, he unwittingly summons Arilyn, a beautiful but brave princess from another world. With no idea how she got here or how to send her back, they must put aside their differences and work together to solve the mystery.

Now the main character thinks not only about high school. He must keep Arilynn's identity a secret while he searches for the elusive and mysterious woman who started it all.