Gon and Killua were sitting on a bench talking when all of a sudden, Deku, Bakugo, Todoroki, Kirishima, Mineta, and Denki fall from out of the sky. You can choose if you're from HxH or MHA

Bakugo: WHERE THE HELL ARE WE?!

Deku: Kacchan, stop yelling

Kirishima: Yeah, Bakubro. There's no need to yell!

Mineta: Awww! I got sent here with all guys...

Denki looks around when he sees Gon and Killua

Denki:Uh, guys?

Gon: Hi! My name is Gon! Nice to meet you!