Azuma Yunoki (柚木 梓馬 Yunoki Azuma) is a student from the 3rd grade of the Music Departement, and one of the Seiso Gakuen concours participants. He plays the flute.
Yunoki is a very close friend to Kazuki Hihara, and is very popular among girls due to his charm and perfection. He comes from a wealthy family that runs a florist.
He actually hides his 'true self' behind his smiles. He only shows this side of him to Hino. This side of him is very cruel and seems to come from his stress in life because in his house, his grandmother controls everything, including his life, whether he likes it or not. This causes him to see every aspect in life as boring, save for Kahoko Hino, who he seems to like, although Hino sees him as 'annoying' due to his other self.
He likes Hino's persistent properties.
Yunoki is always seen smiling. He has his trademark long, purple hair, which is usually parted to the left. Sometimes, we see him with a single, long ponytail.
He dresses very politely and well-groomed, although we usually see him with his Music departement cream blazers open, his hair is always tidy. He sometimes also takes off his blazers altogether, leaving him with his black vest, shirt, and green kerchief noting he is a senior.
Yunoki first met Hino in the faculty room while looking for Mr. Kanazawa with Kazuki Hihara. He introduced himself after cuuting Hihara's blabbing to Hino. Yunoki said that since she is a G.E. student, we must help her. Yunoki was seen repeatedly smiling to his fans. Hino's conflict with Music departement students, who are fans of Yunoki, are due to her being on the same stage as he is.
Yunoki offered Hino an accompanist from girls who offered to be his because she has trouble finding one, but after realizing she must be one of Yunoki's fans, she immediately refused.
- Theme: Opening
- Chosen song: "Morning Song", Edvard Grieg
- Accompanist: Unknown
- Place: 2nd