I had a dream. A dream of a beautiful woman, saint-like in her appearance, offering a fervent prayer. I lost my family in an accident, and my last remaining family member, my pet cockatiel, also passed away from old age. Overcome with grief, I dropped out of school and shut myself away in my apartment room. Yamagata Tatsumi, who repeatedly saw this dream, wondered what it meant. One day, Tatsumi is forcibly summoned to another world. Before him stood the saintess from his dream. "Master!! It's me!! I'm your pet, Chico!!" "Eh? Chico...? That's my cockatiel...?" This is not the story of a boy who made a saintess his pet in another world... but rather, the story of a woman, formerly a cockatiel, who becomes known as a 《Saintess》 in another world, and her former owner, a boy who later becomes an exorcist with the title of 《Tenshou》. It will be heartwarming, with occasional battles, and possibly comedic moments. Note: The book version (volumes 1-4) is currently on sale from TO Books.