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The Dekusquad are sitting in Izuku’s room, sitting around a short table Todoroki had brought over from his own dorm. Text books and notebooks are spread out among them and while Izuku helps Uraraka with her English homework, Tsu is helping Iida and Todoroki study for the Art History test that Monday.
Things are peaceful, the only sounds among them are quiet murmurs, soft crunches of snacks, and the scratch of pencil against paper. It’s nice, tranquil, almost idealistic in its serenity.
It’s all ruined by Izuku’s door slamming open and banging against the opposite wall. Everyone looks up in shock to see the silhouetted figure of Bakugou, one arm still outstretched from where he’d forced the door open and the other holding a bag of XXXX spicy chips. He and Izuku make eye contact and the room stills for a solid five seconds before Bakugou glances over the Izuku’s desk. He then walks into the room, completely silent, goes straight for the desk, and stops. He’s staring at the half empty All-Might water bottle sitting there. He looks at Izuku again, grins maniacally, then picks the bottle up, licks the nozzle aggressively before throwing it across the room and quickly leaves. He makes sure to slam the door behind him.
No one speaks for a moment, and then Izuku sighs and says, “Kacchan, you bitch.”
His friends all burst into stunned laughter and studying is left for tomorrow as their focus is overtaken by how ridiculous whatever just happened was.
Meanwhile, Kirishima is leaning against the wall opposite to Midoriya’s room as Bakugou leaves. He raises an eyebrow and grins.
“You feel better?” he asks and Bakugou grin becomes even more sadistic.
“Hell yeah.” He responds, going back to his own room where the rest of their crew is playing Mario Kart. When they enter, Kaminari looks up with a smile.
“So, what just happened?” He asks, more confused than usual. They’d been setting the Switch up when Bakugou randomly stood up, said “I’m gonna go fuck with Deku.” And then left. Kirishima had followed to make sure no one died.
“Revenge.” Bakugou says nothing else to explain further, but he does glance at his own All-Might water bottle.
The bottle the Deku had mistaken for his own yesterday and taken a drink out of, contaminating it forever.
Deku, that bitch.