DB Multiverse

This story happened in universe 6.

On the 26th of May 767, Son Gokû sacrificed himself in order to save the world...

...taking with him the planet of Kaioh-sama.

A seal was broken.

And the dreaded Bojack gang, who were imprisoned by the Kaiohs, was set free.

Feeling the fight between Son Gohan and Cell, Bojack decided to head for these strange powers.