No Stigma Episode 23 — Kaze

In this state, Kazuma is no longer trying to protect Tokyo; he is simply obsessed with killing the antagonist, Bernhardt Rhodes. He becomes a danger to both enemies and innocent bystanders alike. Ayano’s Awakening: The Crimson Flame

Interestingly, while his Black Wind makes him more brutal and gives him the ability to read minds, it actually makes him overall weaker because he loses the calm control required for his true Contractor powers. Kaze no Stigma Episode 23

Encouraged by Catherine, Ayano decides she must save Kazuma from himself. In this state, Kazuma is no longer trying