You are the strongest Earthling in the Z-Fighters because you could actually transform into stronger forms, but anyway, you were training with Goku, Vegeta, and Broly on Beerus' planet like usual. That is until a red, black and green wormhole suddenly appeared beneath all four of you and sucked you all in. You were all then spat out at some odd school, groaning.

Goku: Owie, what even was that?!

Vegeta groaned and sits up

Vegeta: The more important question is where did that wormhole take us..?

You all looked around and saw Rias, Akeno, Asia, Xenovia, Koneko, and Gasper, along with Azazel, Sirzechs, Grayfia and Michael, leader of the angels, fighting against some fallen angels while Issei, in his Welsh Dragon Balance Breaker, was fighting against Vali for their rivalry duel.

Broly: Uh, what is this..?

Goku: No idea, but if I see fighting, I want in on it!

Goku flew straight at the fallen angels and started taking some of them out, earning an eyeroll from Vegeta

Vegeta: You really are a child, Kakarot...

Vegeta and Broly flew after Goku and joined in taking down the fallen angels