Okay, I know this story has been adopted by someone else but, I just wanted to mention that no matter how many times I re-read this chapter I need a box of tissues next to me every time. Makes me cry every single time.

Ken is really taking the place of a superman type role on the new team, not sure if you meant for that to happen or not.
I understand the setup you have going for this to happen as a crossover, but man there definitely should be a lot of differences as a result. Lex can't be the untouchable business man when he's been caught multiple times before, Martian racism won't make sense when the race either doesn't exist or didn't exist before a few years ago (not sure which angle you'll be going for there), the watch tower was definitely a known quantity in the Unlimited series so it shouldn't be a secret base now, and Doctor Fate definitely ain't an ancient old guy anymore. That's just the stuff that comes off the top of the mind, lets see how well you mold this together.

Just a bit of friendly advice.
When you have a list with described items, you should separate items from the others with semicolons instead of commas.
When you introduce the JL members, you go “Wally West, the Flash, John Stewart, the Green Lantern, etc...”
It would be more legible to read “Wally West, the Flash; John Stewart, a Green Lantern(I say ‘a’ because he’s one of at least three from earth in this continuityetc...”

wow, looking back while reading this story again makes me see the progression and growth of these characters in My Alien Academia in a new level.
I wonder if Ultiman (Ken) can run faster than Zoom (Barry) by the time they met Izuku.

To be fair, in the first season, their superhero identities are not advertised to the public unless they were operating prior to the team

If only it was about Ben meeting the team and scanning a few forms.

Non-Jackass Superman is best lol

Very nice integration of three different DC canons. Thumbs up!

Okay, now to move on to Part 2... Orr, emm, what you have of it.

Hmmm, Lets see here... we have Robin, Starfire, Cyborg, Raven, and an eventual Beast Boy all in one chapter.

Gee, I wonder what the Easter Egg alluding to...

Off-screen voice: Yo, Kuri! Teen Titans is on! The Original!

Me: Got to go, I'm sure it will come to me. :)

I knew it was Raven... though to be fair, when it comes to shadow powers in DC... she IS probably the most notable.

Will need to keep on reading... but I am pretty sure that the new helper you added was a version of Raven for this story.

never do a quote for megaman or i will find and kill you!

Laughed so much after Ken yelled EVERY MAN FOR HIMSELF.

Well, Archery is a sport...