Ensemble Stars! character. A third year student and member of Knights. He was the substitute leader for a while until the return of Leo Tsukinaga.
He has short silver hair and blue eyes. At school, he wears the standard Yumenosaki uniform, consisting on plaid pants, a blazer with a vest and necktie. For Knights, he wears black gloves, striped pants and a white shirt with epaulettes.
Foul-mouthed and not honest with himself, Izumi has a big attitude, is full of confidence, and assumes a detached attitude towards the world at large. He used to be a popular model, but went on hiatus and entered the school in order to start over as an idol. He's fond of fellow former model Makoto Yuuki but dismissive of anyone else.
Izumi initially considers Anzu an amateur producer and a rival in his affections for Makoto. In later stories however, he learns Anzu and Makoto's relationship is nothing to worry about and begins recognizing her skills as a producer.