RWBY Ball Z. (Saiyan saga)

The battle against Raditz ended with the death of said Saiyan, but at a high and terrible cost: Goku had no choice but to give his life to protect his son. However, with his dying breaths, Raditz revealed two other Saiyans would arrive soon, and they would destroy all life on Remnant when that happened.

Now, it's a race against the clock. Everyone who is aware of the coming threat has begun training, hoping to stand a chance when the Saiyans arrive.

Yet not all is what it seems, and in the shadows, a prince and a maiden have forged an alliance.