Mizuiro Kojima

A boy with a petite and motherly appearance.

He is a classmate of Ichigo and often hangs out with Asano and others.

He refers to himself as "boku" and has a calm personality, being pathologically good at making excuses. His hobby is womanizing, a trait he inherited from his mother.

He prefers older women and is known as a "killer" of older women. He once claimed to be dating a woman named Naoko.

He was the one who fabricated and spread bad rumors about Ichigo and Rukia's relationship.

He comes from a single-parent family and does not seem to have a good relationship with his mother, who dates men, but ironically, he behaves similarly, showing their blood connection.

He has been classmates with Keigo Asano since middle school, but he switches to polite language when he finds Keigo annoying. He also steps on Keigo with a poker face, and his treatment of him varies greatly depending on his mood. However, Mizuiro considers Keigo to be "a much better person than himself."

He met Ichigo and Chad on the day of the entrance ceremony with Keigo and felt a modest joy when Ichigo praised him for being good at talking about the good points of his friends.

He first learned about the changes happening to Ichigo when Ichigo and the others went to Hueco Mundo to rescue Orihime. He tries to find women to cook for him.

In the transferred Karakura Town, he confronts Aizen, who targets them, using gas cans and bottles, showing his fearless courage.

In the final episode, he visits Ichigo's house with Arisawa and Asano.