"A middle-school-aged demonic Transient who is a self-proclaimed men among men and finds talk of romance or love deeply uncomfortable. Despite that (or maybe because of it?), he has quite a romantic views of things. He has a tendency to strongly respect manly men who don't have any interest in love or romance. His Sacred Artifacts are the Griffon Wings on his back that have been steadily growing as he comes of age. "
A surly junior high student from a noble demon family and self proclaimed loner. Sitri is deeply embarrassed by romance and sappiness and swears them off altogether, and Valentine's celebrations make him especially irritable. Although he tries his hardest to put on a tough guy facade, he's a romanticist deep at heart, and absolutely loathes to admit it to even himself. Recently, he's entered a growing season well known and well feared among his clan, and begun to grow gryphon's wings on his back.
"The Griffon, with the wings of an eagle and the body of a lion, is the symbol of impossible union. Their feathers and wings possess a Rule that binds the fates of impossible combinations. These Sacred Artifacts are a part of everyone in his clan, and they each learn to control them through rigorous training. Since he has avoided all things related to love, he has not learned how to control his Wings. One day, a slight accident caused his Wings to go out of control."
The gryphon is a mythical beast made up of the impossible combination of a bird of prey and a lion, whose wings hold a potent ability to bind those who cannot be together in love. All members of Sitri's clan grow these wings when they come of age, and learn to keep them under control through training. But since Sitri wanted nothing to do with love or romance he chose the ill advised path of ignoring the problem and hoping it goes away, until the day his wings finally went out of control and caused havoc in Tokyo.