My characters talking to themselves from the past, season 1 being the past and season 5 being the present (not gonna do season 6 yet, maybe next book I will) 

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Kay1: You're me from the future? 

Kay5: Well...yeah, which is...only a year or so, hehe 

Kay1: I see, so...how are things? 

Kay5: A...lot has happened, um...Katsuki got kidnapped...

Kay1: He what?! 

Kay5: Don't worry, our friends and I helped rescue him, so he's okay! 

Kay1: Oh, okay that's good...do...do we? 

Kay5: Hehe, yeah we get together, he actually likes us the same 

Kay1: Really? Okay, so, how about Koy? 

Kay5: He's doing so much better! He's gotten so much support and has...a lot of people who like him actually 

Kay1: Really?! Does he have more than one boyfriend or girlfriend? 

Kay5: ...Yeah, in a way...

Kay1: Ahh, so he's in a polya- pol- polyam- 

Kay5: You can just say poly, heh...

Kay1: Okay...do we just...never learn how to say that? 

Kay5: ...No...but we've been in one too

Kay1: Oh...was it before Katsuki? 

Kay5: Well...he's part of it 

Kay1: Really? I...I never thought he'd be one to...share...

Kay5: Well, when it's with a redhead, he doesn't mind, hehe

Kay1: Okay...oh! Do we ever meet Ingenium? 

Kay5: Um...One point, yeah, we go to school with his brother

Kay1: Whoa! That's so cool! 

Kay5: Yeah, but um...something...happens...

Kay1: What? 

Kay5: Um...he gets attacked by a villain and...is out of commission 

Kay1: W...what? Are you serious...? 

Kay5: Yeah...though um, he's alive at least

Kay1: Okay...that's good...does Koy ever meet Ereasurehead? 

Kay5: He's actually our teacher 

Kay1: Oh wow! That's really cool! 

Kay5: Mhm, he's...not as you think, but he's wonderful

Kay1: Alright then, it seems like things won't be so bad 

KAy5: Yeah, there's some ups and downs, but it's not the worst

Kay6: ...Just wait...

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Koy1: ...You seem happy...

Koy5: Yeah, things get better for us

Koy1: Oh really? 

Koy5: Yeah, we find...love in a lot of places, heh 

Koy1: ...What? 

Koy5: Well, we have quite a few lovers and one poly relationship 

Koy1: How...how did we swing that? 

Koy5: Apparently we're really hot in our class 

Koy1: Huh...okay...

Koy5: Oh and, one was a former villain-

Koy1: Former: How do you know they won't betray us? 

Koy5: Because...when you get to know her, you'll see that people can change...she's amazing 

Koy1: Oh, and let me guess, you fall in love with like...a beast? 

Koy5: ... *thinking about Kashi* I wouldn't say beast...

Koy1: ...What kind of things are we into? 

Koy5: You know. 

Koy1: ...Shut up. 

Koy5: Heh, um, Katki is still there 

Koy1: Heh, what did he follow us to ua? 

Koy5: Heh, I don't know. Oh um...Izuku is also there 

Koy1: Wait, but...he doesn't have a quirk? 

Koy5: Well, he said it developed late, kinda weird but, never late than never 

Koy6: Well-

Koy5: You're not meant to- wait, you good? 

Koy6: ... *runs off* 

Koy1: ...Who was that? 

Koy5: ...us? 

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(Ommi technically doesn't show up until Hawks does, but I'll still add her)

Ommi1: Sup

Ommi5: Sup 

Ommi1: Much change? 

Ommi5: We get more serious with the bird brain 

Ommi1: Interesting 

Ommi5: Yeah 

Ommi1: So it's not open anymore? 

Ommi5: Ehh, kinda sorta, I mean we start only letting people we know sleep with each other instead of one-night stand kind of things 

Ommi1: Huh, okay 

Ommi5: Endeavor becomes number 1

Ommi1: Damn, what happened to All Might?

Ommi5: Had a fight that put him into retirement 

Ommi1: Huh, didn't think that would be for a while 

Ommi5: Yeah, it was quite surprising 

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Amisho1: So. We join the LoV? 

Amisho5: Yeah, and...it's actually nice. 

Amisho1: Nice? Aren't you focused on our goal? 

Amisho5: Of course, but...they're like a family 

Amisho1: Tch, like how Dad was our "family" 

Amisho5: No. They are nothing like that piece of shit. Toga is like a little sister, Spinner and Twice are like brothers, Dabi and Compress are like uncles in a way, then, the boss...Tomura...

Amisho1: What? What's he like? 

Amisho5: Well...he's obnoxious and childish at times, but he's a good leader and does grow up a bit...we actually fall in love with him. 

Amisho1: What? We don't do "love" 

Amisho5: Yeah...that's what I thought, but...he's different. He's sadistic and a villain, but we are too, and...he truly cares about us, and the league 

Amisho1: Tch, sounds like you've gotten soft. 

Amisho5: No. I just know what real love is now. You'll see for yourself. 

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Hizani1: ...

Hizani5: Um...She's in a tube...

Author-Chan: Oh yeah, you were being made right after the USJ attack...we'll do season 3 when you escape 

Hizani3: ...Where...am I...

Hizani5: Hey 

Hizani3: ...Y...you look...

Hizani5: I'm you, we escaped from that place and found our father 

Hizani3: F...father...? 

Hizani5: Were we got our DNA, he even named us 

Hizani3: Name...

Hizani5: God I'm dumb...

Hizani3: D...Dumb... 

Hizani: Do I have to keep talking to her? 

Author-Chan: ...Nah...

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Silenai1: Oh, hello 

Silenai5: Hi 

Silenai1: So, how is it working with Erasurehead? 

Silenai5: It's...nice...

Silenai1: Nothing bad happens, right? 

Silenai5: ...There's some ups and downs, but we manage to take care of things 

Silenai1: Oh good, I'm glad to hear it 

Silenai5: Mhm...we even started dating again 

Silenai1: Oh, who do we get with? 

Silenai5: We...fall in love with Shota 

Silenai1: ...We date Erasurehead? 

Silenai5: Yep...

Silenai1: Well, I'm sure it's better than our last relationship, right? 

Silenai5: Considering he's a hero and not secretly a villain, yes 

Silenai1: Okay, hehe 

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Akari1: H...hello 

Akari5: hey...

Akari1: ...We're still married to Hizashi, right? 

Akari5: Yes, he still loves us and we love him 

Akari1: Okay, that's good, and Bigani? 

Akari5: She's doing great 

Akari1: I'm happy to hear 

Akari5: Yeah 

Akari1: You haven't forgotten Oboro, have you? 

Akari5: ...No...

Akari1: Well, he'll always be in our hearts 

Akari5: M...Mhm... 

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I might do more later, but just an idea