Not too long!

"Hmm, the costume is pretty cool, but the design is pretty simplistic," Melissa noted as she looked over Izuku, who flushed, but maintained his composure. Thanks to Momo and the others, he was quite used to proximity with girls, so the only reason he was embarrassed at the moment was because she was effectively a stranger. "And I don't see any Support Gear... What type of Quirk do you have?"

"A power type, boosts my physical strength a good deal..." Izuku answered quickly.

"He also can't use it fully yet," Momo added, deciding to see if she could get Izuku and Melissa to connect in the short time they had. The odds were smaller than she liked, but damn it, she was going to get a hot blonde American girl in the harem if it killed her! "His fitness is good, and even now improving, but the Quirk is too powerful for his body unless he restraints it to five percent."

"Actually, my training with Mirko has boosted it up to six," Izuku corrected Momo. "Seven with my legs. And I can do short bursts of eight without doing too much damage to myself."

"Oh, makes sense. Still not even a tenth of your potential though," she nodded.

"Hmm, I might have something for that, actually..." Melissa mused, before going over the rest of the harem, asking quick questions about their Quirks. For Momo, she suggested she replace that encyclopedia with something more compact, a device that could give her info with voice commands, maybe even holographic images that would give her visual references. Also some device that could inject lipid supplements directly into her bloodstream. She also lingered a bit on Momo, due to the exposed skin her Quirk required, blushing a bit.

"Definitely bi," Momo thought. Now she really wanted to rope Melissa into the harem!

Ochaco, she recommended grapple guns for mobility through the air, and a potential flail to use against particularly durable villains, just use her Quirk on something big and heavy, attach a grapple to it, swing it, release Quirk right before impact. Though again, that would best be used against Villains who could take it, lethal **** was a last resort for Heroes. "Sounds good!" Ochaco replied, when Melissa finished. Mei was taking notes nearby, muttering about how to make such items.

Tooru and Setsuna mostly just got weapons suggestions, Tooru could make weapons invisible, and Setsuna could reposition them to sneak attack easily. Tsuyu was a bit trickier, as she already had temperature regulation in her suit, due to her Quirk making her cold blooded. "...heated pads maybe, to boost the effectiveness of the temperature regulation?" Melissa asked, and Tsuyu nodded.

"That's a pretty good idea, ribbit," she admitted.

"As for you..." Melissa mused to Itsuka, taking her hands, and examining them. "...expanding gauntlets," she nodded.

"...how would you make metal expand?" Itsuka asked. "At least, not without a Quirk that could do it?"

Izuku noticed a slight wince at that from Melissa, and wondered what that was about, before she continued, "Nanotech! It's a new thing we cracked on I-Island recently."

"Nanotech!? I've been trying to figure that out for years!" Mei squealed, once again dashing to Melissa, grabbing her shoulders and shaking her, wanting to know more, talking a mile a minute, but Itsuka gave her the Monoma treatment, knocking her down.

"I think we've gotten sidetracked enough, you can ask her about it later," she told Mei flatly.

"Yes, Young Kendo has the right of it!" All Might agreed, and they headed to the lab, Melissa grabbing her pogo stick, and demonstrated the Nanotech when it shrunk down and she was able to put it on her back.

"Come on, we can spare a few more minutes!" Mei whined, tied up and kicking while Itsuka dragged her.

"...where'd you get rope?" Izuku asked Itsuka, who pointed to Momo. Ah.