Introducing Yumi to them.

"So, why are we headed to a locker room of all places?" Kirishima was asking Izuku as he followed him and Ochaco and Momo, Mina in tow.

"Because not even Principal Nezu can get away with putting cameras in them or bathrooms," Izuku replied simply, opening the door.

Yumi turned towards the group as they filed in, keeping her expression schooled into an expressionless stare when she noticed Mina and Kirishima. "Huh, so you want to get us acquainted with Nomu, or rather, Yumi now, huh?" Mina inquired, staring at Yumi curiously.

"Pretty much, yes," Izuku nodded, before looking at Yumi. "Yumi, these two are fine to act sentient around. They know about you."

Yumi relaxed slightly. She was still rather stoic, but now there was some obvious light in her eyes. "Hello. I am Yumi, Master Izuku's personal bioweapon/sex ****," she told them, giving a formal, polite bow before straightening back up.

"Yeesh, you really claimed ownership of the League's bioweapon with Momo's power, huh?" Kirishima chuckled a bit as he and Mina introduced themselves.

"Mina is part of the harem now, albeit more... Part time than me and Ochaco," Momo explained to Yumi. "That means she has secondary control and ability to bring out one of your personalities, same as us. And I do believe Kirishima here will have that same privilege."

"Understood," Yumi nodded solemnly.

"Wait, personalities?" Mina asked Izuku.

"Oh, right, didn't mention that part... We gave her more than one sense of self... Let me show you," Izuku mused, gazing at Yumi, determining which one to trigger.