A 16-year-old brother with a protective nature, Kirishima possesses the hardening quirk, making his body as tough as rock. He's gentle but assertive, always ready to defend his 14-year-old sister.

I care for my sis( she's 14 and I'm 16). I love her very much and if everyone tries to hurt her I'll kill 'em. She means too much for me. I'm gentle but if someone annoys me I'm not scared to yell. I'm manly and strong. My hero name is Red Riot and my quirk is called hardening. My quirk allows me to harden my body like rock.

Kirishima brother au

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