I don't usually do reviews, but eh, might as well as boost your count a little bit.
First off, I love the idea that you're going for here, and I especially love that you're actually giving Izuku time to train in OFA. Overall, you're doing quite a good job for your first fic.

A small little nitpick that bugs me is your lack of dialogue tags next to the actual dialogue of the character. As of right now, it's not a deal breaker, and you've done really well in indicating who's dialogue is who's, but I feel like this will become harder as more and more characters are added to the discussion. You don't always have to have dialogue and its tags as separate lines, so maybe do a bit more playing around with your syntax. In the context of MHA fanfics, first fics that comes to mind that you could use for reference would be Viridescent by darkfire1220, or The World's Darkest Hero by TheSmilingMask. If you don't mind Naruto fanfics (my main fandom, I'm branching out though), then fics by The Engulfing Silence and KyuubiGoku are great references as well. Then again, you may already have a plan on how you want to handle this. I'm just making a suggestion (that I'm hoping you'll take into consideration; I just really don't want to spend 10 whole minutes trying to figure out who said what - like I did when I read The Lord of the Flies in school).

Also, try putting ANs/Review Responses at the end/bottom of the chapter instead of at the beginning/top. I think that top ANs should be reserved for information that the reader absolutely has to know before reading the chapter, or for important announcements and such. Again, just a suggestion.

There's also a small grammar error in this chapter (possibly in previous chapters as well, I'm too lazy to go back and look) that could repeat itself in the future. In the scene where Izuku first meets Recovery Girl and is explaining his Active Regen, you wrote "...Chiyo grew a sad smile at the mention of my father's death, one I returned, before continuing..." Pretty sure you meant to replace "my" and "I" with Izuku. Speaking of POVs, why do you use First-Person for the Mystery Girl? Wouldn't it be better to keep the tone of the whole story by writing it all in Third-Person?

One last thing, judging from how you referred to Bakugo as "Baka-gou," I'm guessing you don't really like his character. Or maybe you were just expressing disdain at his treatment of Izuku early on in the series. Either way, I hope that doesn't mean you aren't going to progress his character development here. Personally, I feel that though you may dislike the character of the source material, a writer should be able to develop that disliked character to be better than the source material, while still keeping intact core traits. darkfire1220's Bakugo is the best example of this that I've seen recently.

Sorry if the review is a bit long. If you want to give this review a response, but don't want to repeat the whole review, just put your response beside my name and I'll understand.
I'll be waiting for the next chapter. Until next time, later.

I don't usually do reviews, but eh, might as well as boost your count a little bit.
First off, I love the idea that you're going for here, and I especially love that you're actually giving Izuku time to train in OFA. Overall, you're doing quite a good job for your first fic.

A small little nitpick that bugs me is your lack of dialogue tags next to the actual dialogue of the character. As of right now, it's not a deal breaker, and you've done really well in indicating who's dialogue is who's, but I feel like this will become harder as more and more characters are added to the discussion. You don't always have to have dialogue and its tags as separate lines, so maybe do a bit more playing around with your syntax. In the context of MHA fanfics, first fics that comes to mind that you could use for reference would be Viridescent by darkfire1220, or The World's Darkest Hero by TheSmilingMask. If you don't mind Naruto fanfics (my main fandom, I'm branching out though), then fics by The Engulfing Silence and KyuubiGoku are great references as well. Then again, you may already have a plan on how you want to handle this. I'm just making a suggestion (that I'm hoping you'll take into consideration; I just really don't want to spend 10 whole minutes trying to figure out who said what - like I did when I read The Lord of the Flies in school).

Also, try putting ANs/Review Responses at the end/bottom of the chapter instead of at the beginning/top. I think that top ANs should be reserved for information that the reader absolutely has to know before reading the chapter, or for important announcements and such. Again, just a suggestion.

There's also a small grammar error in this chapter (possibly in previous chapters as well, I'm too lazy to go back and look) that could repeat itself in the future. In the scene where Izuku first meets Recovery Girl and is explaining his Active Regen, you wrote "...Chiyo grew a sad smile at the mention of my father's death, one I returned, before continuing..." Pretty sure you meant to replace "my" and "I" with Izuku. Speaking of POVs, why do you use First-Person for the Mystery Girl? Wouldn't it be better to keep the tone of the whole story by writing it all in Third-Person?

One last thing, judging from how you referred to Bakugo as "Baka-gou," I'm guessing you don't really like his character. Or maybe you were just expressing disdain at his treatment of Izuku early on in the series. Either way, I hope that doesn't mean you aren't going to progress his character development here. Personally, I feel that though you may dislike the character of the source material, a writer should be able to develop that disliked character to be better than the source material, while still keeping intact core traits. darkfire1220's Bakugo is the best example of this that I've seen recently.

Sorry if this is a bit long. If you want to give this review a response, but don't want to repeat the whole thing, just put your response beside my name and I'll understand.
I'll be waiting for the next chapter. Until next time, later.

Finally the preparations are done! Looking forward to the next step.

First up, I haven’t started reading the chapter yet, but I have to say :3 Happy (Late) Birthday!

Second, I’m on your side! Makoto is definitely Best Girl! Smart, Focused, Determined, can bash heads in with brass knuckles x3 School president mixed with Bad girl biker chick, it’s a fusion I didn’t know I wanted!

Third, for my vote for best girl in My hero? Hmmm Mina is a ball of energy that I love, I love Smart girls like momo, but then there are punk girls like Jiro _ my god, I just need a high energy smart punk girl in my life. Lol but I’m all seriousness, I think Mina and Jiro are tied for me right now

so if he can accelerate his healing can't he get stronger faster and get more gains from a workout pretty instantly? I mean working out tears your muscles and them healing is what makes you stronger, so if he can just straight up heal himself he just needs to push himself super hard then heal for instant gains.

Hey. I think you did really well with this chapter and explained how Izuku's training went quit well. I also like the fact that you decided to have Recovery Girl train Izuku with his quirk and have a bit more of a history to Izuku's father and his connection with Recovery Girl. (Also I now want to know what the [REDACTED] is so is it possible for you to tell us or was it just a form of explaining how Izuku got control of his mumbling habit?
Any way for girls like I said I think Tsuyu Asui would work perfectly for one she can relate to how Izuku's last was because she had a similar situation because of her quirk and her looks. I also think she wouldn't really care about having a polygamous relationship with Izuku and several other girls because if my memory serves me correctly there are several species of frogs that have polygamous relationships because they had to adapt to there situation and it specifically says that Tsuyu's quirk allows her to do anything a frog can and state that she has several tendencies that are similar to a frogs. So it's very likely that she wouldn't really care about having a polygamous relationship.
Any way keep up the good work but without exhausting yourself.
Stay healthy.

aside form a few misspelled words here or there it's an awesome chapter as for the Harem Ochako hands down she is Best girl that or Nejire

So with the healing, this power could regenerate your muscles at a much faster rate when he puts some strain to them, basically he has a faster muscle growth rate, so he could be a power house

KO awesome chapter, Izuku is gonna have to prepare himself for a lot of punishment from the intense training of both heroes as he’ll be through what feels like pain as the exam is coming soon hopefully he’ll be extra ready by then.

Excellent update thank you for making this wonderful story

Wonderful excellent update

coming up with other quirks, keep in mind anything can be considered a quirk in that universe. even "weak quirks" like changing ones hair color or "weird" like being able to move scars to other parts of the body.

im only saying this because other users have written stories where he has 7 only combat oriented quirks ect. when it doesnt really make sense because a past torch bearer could have had a weak quirk and still been chosen. i mean toshi was quirkless, whose to say that the 2nd user wasnt "three eyes" the hero with three eyes! -and nothing else.- or the 4th, "Rainbrow!" the hero with color changing eyebrows!

take those ideas if you want, but keep randomness in mind cant wait for the next chapter!

oh and yeah. this is a much larger review they my last one, haha

Great job so far :3
I’m half expecting to see Izuku give more then just a little healing to people (can you imagine supercharging other’s quirks by touching them? Like what happens in the new movie? Cx that sounds like a FanFiction idea... one I might use in the future lol)

Regarding the harem... Would it be possible for you to make it so the harem includes the least amount of girls that you were aiming for. You were talking about how 7 was the max and 4 was the minimum, with that being said can you make it a 4 girl harem? I find it too hard to keep track of everyone in a harem after it exceeds 5 and 7 is simply out of the question and utterly unrealistic.

THIS IS GREATNESS!

also towards the end you were going back and forth between one for all and all for one. it was around the time All Might came into the conversation between Izuku and his Mother. Cheers!