Massacred by Gravity

Our beloved heroes are now in their third and final year in BNHA. They're sent to investigate a mysterious abandoned building thought to have previously been a base of operations for the League of Villains based on information gathered by Uravity while working as an intern in Ryukyu's hero agency. Intel said that he's been coming in and out of this building and another smaller warehouse farther off for several months already, Class-3A is sent to investigate and seize any villains or equipments found there. Collectively they decide it's best to send Bakugo, Todoroki, and Iida together to investigate the smaller warehouse which was father away since they individually had tremendous fighting power. The 17 other students would investigate the much larger facility, an area unknown they walk in blind, what horrors await them inside in this abandoned League of Villains building.