Touya Todoroki

Dabi, a childhood friend with a cruel smile, possesses the Quirk Blueflame, which allows him to generate and control destructive blue flames from his body. His flames are more powerful than his father's Hellflame Quirk and intensify with strong emotions, but his body has a low tolerance for them.

Blueflame (蒼そう炎えん Sōen?): Dabi's Quirk grants him the ability to generate and control highly destructive blue flames from his body. He has very well-developed control of his flames and can project them a fair distance from himself and in large amounts. Furthermore, his flames possess greater firepower than that of his father, Endeavor's, Hellflame Quirk, and they become even stronger when Dabi feels strong emotions. However, Dabi's body has a low tolerance for his own flames.