When all was said and done the teams were; Midoriya and Uraraka, Todoroki and Shouji, Yaoyorozu and Mineta (much to the former's displeasure), Iida and Bakugou, Aoyama and Ashido, Sato and Kouda, Jirou and Kaminari, Asui and Tokoyami, Hagakure and Kumagawa, and Kirishima and Sero. The odd one out being Ojiro.
"And the first two pairs to do combat shall be!" All Might said as he reached into another set of boxes. "Pair A! Midoriya and Uraraka will be the Heros! Pair D! Bakugou and Iida will be the Villains!"
We all know what happens, so let's just move on...
The first battle had finally ended with the Heros victory, although it was not what most would call a 'proper' victory. Though they had one, Midoriya and Uraraka were in worse condition than Bakugou and Iida.
All Might had called for the medical bots to come and pick up his injured protege while he focused on wrapping up the fight with an after-battle report.
As Izuku was carted off, he noticed a black silhouette approach him. "K-Kumagawa-san?" he said weakly.
[Man, Bakagou-san really put you through the wringer.]
Izuku was far too tired to point out that Kumagawa was butchering Kacchan's name, though it was probably on purpose.
[Though I think the injuries are more superficial than anything.] opined the average looking teen.
'What's he talking about? My arm feels like it was crus-' suddenly Izuku's eyes widened in surprise. His arm, which moments before felt like it had just been caught in a grenade explosion, which wasn't too far off of a description, now felt fine. In fact, all of his exhaustion seemed to have disappeared. Tentatively lifting his arm up, Izuku noted that while his costume was still damaged, his arm looked distinctly uninjured.
"What the?!" he exclaimed as he shot upwards into a sitting position.
[See, you just thought it was worse than it actually was. It's also rather surprising that All Might made the same mistake as well.]
Izuku was still having a hard time processing what was happening. "But I..."
[Come on Midoriya-san.] Kumagawa called out as he headed back towards the class. [It isn't wise to try and skip class by feigning an injury.]
Still confused at the situation, Midoriya's body went into auto-pilot and followed after Kumagawa.
Upon returning to the group, All Might noticed the teens messy green-hair among the class. "Midoriya! What are you still doing here?! I thought I had the robots take you to the nurse!"
"Ehm- well- it's just... I'm okay...?" the teen answered in confusion, waving his previously injured arm about like it was fine.
"How is that possible?" wondered the Pro. A sentiment shared by the rest of the class.
[I guess you just overestimated the extent of his injuries.] Kumagawa offered with a shrug.
The Pro's eyes immediately shot to the dark-haired boy. As he recalled, Kumagawa's Quirk was listed as 'unknown'. In fact, no one had yet to see the boy utilize his Quirk in any way. Which led to him thinking that maybe Kumagawa had a healing-type Quirk similar to recovery girl. "Did you have anything to do with this Kumagawa-san?"
The teen in question held his hands up in defense and gave a sheepish look. [I assure you, I didn't so much as touch Midoriya-san, let alone heal him. Besides, my ability is in no way capable of healing others.] he affirmed.