He tries a spar with Yumi.

"I'll try a round. I got a handle on about four percent of my Quirk now," Izuku replied.

"So, should I use four percent of my strength?" Yumi asked, cracking her knuckles.

He nodded. "Yeah, that's only fair..." He took a combat stance, and then rushed at her, throwing a punch at her gut. The blow landed, and her flesh rippled. She didn't even flinch. "Right... Shock Absorption," he chuckled nervously as she grabbed his arm, and flung him at the wall. He managed to right himself and kick off said wall, right back at her, and wrapping his arms around her waist, managing to tackle her to the ground.

"Oof," she grunted, before rolling, managing to break free from his hold. She jumped to her feet as he kicked at her leg, trying to knock her off of her feet, the blow landing, but not budging her, the Shock Absorption dispersing the ****.

"Yeesh, you're tricky for strength types like me to fight," Izuku admitted as he got up. "I suppose that was the point though..."

Yumi smiled, and threw a punch at Izuku. He returned it, and their fists struck each other, Yumi's arm rippling and quivering. Izuku clearly had a slight advantage in terms of strength. They continued to exchange a few blows, Izuku landing more, showing he also was more skilled, thanks in part to his practice with Kendo, but it ultimately didn't matter. Yumi eventually got him in a chokehold, succeeding in doing so by ignoring his attacks, and letting her Shock Absorption handle defense, and grabbing him.

"Say Uncle! Say it!" she demanded, not letting him go as he flailed, much to the amusement of the others.

"Uncle, Uncle!" Izuku immediately complied, and she let him up.

"Well, my Shock Absorption Quirk makes brawls just unfair," Yumi giggled. "I guess I'm just a tank." She kissed his cheek. "At least I'm a good punching bag to train against."

"Yeah," he grunted, stretching his sore limbs, smiling at Yumi as she kissed him. The rest of the sparring sessions went in a similar manner. Despite Yumi's lack of skill, her raw power and multiple Quirks made her a difficult opponent, even when holding back. Kaminari actually managed to do some damage to her with a pulse of his electric Quirk, but other than that, she wiped the floor with everyone.

"Damn... we all still got a long way to go," Tooru pouted.

"Yeah, but we got a good measuring stick now," Kirishima noted as they headed out.