Umi, previously Haruhi Todoroki. Same quirk as Touya Todoroki
A transgender villain, associated with the leauge of villains as one of the strongest members. He was previously a girl enrolled at UA with Touya, but faked his death, presumably due to being forced into a female role by his father
He is in a relationship with the pro hero Erasurehead, who is unaware of his partner's villain actions, and is the father of a boy named Shinso