Katsuki Bakugo , also known by his nickname Kacchan and his hero name Dynamight , is a superhero and one of the main protagonists of the manga series My Hero Academia, created by Kōhei Horikoshi. His Quirk is Explosion (爆破), which allows him to make explosions from his hands by detonating the nitroglycerin-like substance he sweats; throughout the series, he learns various different ways to apply this. Overuse of the Quirk can potentially break his forearms.

My Hero Academia is a Japanese manga series written and illustrated by Kōhei Horikoshi. It has been serialized in Shueisha's shōnen manga magazine Weekly Shōnen Jump since July 2014, with its chapters collected in 40 tankōbon volumes as of April 2024. Set in a world where superpowers have become commonplace, the story follows Izuku Midoriya, a boy who was born without a Quirk but still dreams of becoming a superhero himself. He is scouted by the world's greatest hero, All Might, who bestows his Quirk to Midoriya after recognizing his potential, and helps to enroll him in a prestigious high school for superheroes in training.