Yuno
About
Yuno is a student at the local magic school, wielding black magic. While training, he summons the familiar Harlem, an Incubus whose powers are weak and based on white magic - the complete opposite of what he's looking for. Yuno tends to behave seriously and is at first apprehensive of Harlem's clinginess, but warms up to him.
Yuno usually hangs out with his dueling teammates: Fuyuno, Midori, and Takagi, and their familiars. He has an older sister but her name isn't stated.
In an extra, Yuno eats a piece of fortune-telling sugar and sees a vision of himself and Harlem still together 15 years later and celebrating their anniversary.