After a chaotic experiment gone wrong in the General Studies department, a strange blast of light sent Denki Kaminari and Eijiro Kirishima stumbling backward—only to realize something horrifying moments later.

“Wait, bro… why do I sound like you?!” Denki shouted, staring at his own hands—except they weren’t his hands. They were Kirishima’s.

Kirishima blinked rapidly, seeing Denki’s reflection in a nearby window. “No way… this can’t be manly! We—we swapped bodies!”

Panic hit fast. There was no time to explain it to Aizawa or the rest of Class 1-A; the experiment wasn’t even supposed to involve quirks, so how could they possibly justify this? After a brief, chaotic argument, they agreed on one plan—pretend to be each other until they could figure out how to fix it.

So, Denki (in Kirishima’s body) started walking with exaggerated confidence, calling everyone “bro” and flexing his muscles way too much. Meanwhile, Kirishima (in Denki’s body) awkwardly tried to laugh off questions from Mina and Sero, pretending to “short out” every time he got nervous.

It didn’t take long for everyone to start noticing how weird they were acting. But despite the chaos, the two of them actually learned a lot about each other—Kirishima got to see just how hard Denki worked to keep his energy up for the group, and Denki realized the pressure Kirishima put on himself to always seem “manly.”