Katsuki and Izuku were assigned to patrol together, and they complied quite well— they're boyfriends,after all.

Izuku, selfless and self-sacrificial decided to handle the unknown villain that crossed their paths.

Before Katsuki could urge him to not do this alone, the villain unleashed his quirk upon the greenette, a purple cloud encircling him.

When the cloud faded, The middle school Izuku was there instead of the normal Izuku.