So.. it's been a rather long while since I updated this. I apologize for that.
Anyway, now that Dragon Ball Super is over, and My Hero Academia Season 3 has come to an end, I think we can properly do this.
I'll give a summary to those who are just joining us.
So, Bulma Briefs, created a device which would send our heroes, the Z-Fighters to another universe. Alas, our pal Goku was too excite and ended up sending everyone to the MHA world. They showed up when All Might faced off against Nomu. I've re-read this, and I think I'll try to pace a little slower. Also, I'm not gonna make Gohan teach them. It seems kind of weird, but I'll be making Goten and Trunks attend U.A. And yes, Goten and Trunks are 15-16 years old. Now.. we can start again. The Capsule Corp building they are all staying in was created when they first got there. Also, I'm going to start this from a different point. Before the Sports Festival seems good.

"What?!" Goten and Trunks shouted in surprise. "You can't be serious, dad!" Goten exclaimed at Goku.

"There's no way I'm doin' it. They're way too weak for me." Trunks told Vegeta.

Goku shrugged. "We didn't suggest it." Goku told Goten.

"Indeed, there's no way I would send you to that school, but your mother insisted." Vegeta explained to Trunks.

Both Vegeta and Goku turn to look at Chi-Chi and Bulma.

"Goten, you know it's for your own good. Going to this school will help you with your social skills."

Chi-Chi told Goten. "Yeah Trunks, you might make some new friends."

Bulma told Trunks.

"Eh..." Trunks replied.

Goten and Trunks looked at their parents.

"No way!"

They exclaimed. Chi-Chi and Bulma looked at them. "Not an option.."

The very next day...

"Have a good day, Goten and Trunks!"

Chi-Chi and Bulma yelled as Goten and Trunks walked to U.A, from their Capsule Corp Building.

"Man.. This sucks, Trunks." Goten said to Trunks as they walked to the School.

As they got to the school, Goten was told by a guy with sunglasses he was in Class 1-A, and Trunks is in Class 1-B. Goten walked into the classroom, to be greeted by a blank-looking guy.

The man greets him saying, "Hello, Goten. I am Mr. Aizawa. Class, greet our new student." Mr. Aizawa tells the class.

"Hello!" The class exclaims with only a few exceptions not saying anything.

The same was with Trunks, being greeted by his class.

Goten took a seat next to a purple-haired kid who looked like he should be in 3rd grade.

"Hey!" Mineta called out to Goten. "I've never seen you around, are you a transfer student?"

"Um.. I moved here from.. uh, Tokyo." Goten explained to him.

"Oh okay." Mineta replied.

"Class, in 2 weeks we will be having our U.A Sports Festival." Mr. Aiwaza declared.

"SPORTS FESTIVAL?!" The class exclaimed.

...

Bulma's intellect was apparently paying off in this world as well, in only 2 weeks, she's become the richest person in the world, at a net worth of $300 trillion dollars.

As a result, U.A reached out to her, hoping she could help U.A with her inventions.

"Is this Mrs. Briefs?" Present Mic said.

"Yes, who is it?" Bulma asked.

"It's Present Mic from U.A, we'd like for you to come down to the school tomorrow Open House."

"Sure. What time?"

"Around 12:00 PM, if you don't mind?"

"You got it." She hung the phone.

"Who was that?" Vegeta asked curiously as he entered the room.

"It was Trunks' school. Apparently they want me to come tomorrow for Open House." She told him.

"I suppose." Vegeta said. "I refuse to go."

Bulma wasn't gonna have it. "You WILL go, or I won't let you train in the gravity chamber we brought anymore."

Vegeta sighed. "Alright, I'll come.."

...

Goku, Chi Chi, Gohan, and a lot of the Z-Fights were called by U.A as well. They were asked to attend. Due to their powers, they were gaining a lot of public attention. Maybe even a bit more than they wanted...

...

All Might sat wondering what they strange bean that man had given him was. Hm.. maybe he should take a visit to that peculiar man.

Well, that's where I'm gonna leave it at. Why so short? Yeah, I know, but I promise the next chapter will be a lot longer.