This desolate planet is extremely far from Earth, the estimization of time it would take to get towards earth is around 4 to 5 weeks of travel.
Brian Knowing that piece of information from getting accustomed to the ships technology has made him extremely bored and lazy. He doesn't have a phone or Manga to read so you really can't blame him.
'Man I can't keep gooning I got to feel the real thing again, this shit is fucking miserable why didn't I think this through?!'
Clearly the years of mindlessly training alone with barely any human contact got to him....
20 minutes later
'Y'know maybe I should've recruited turles....
Hmm nah that would've been bad because I was not gonna be his subordinate, the ego clash would've been insane.'
As of now he's doing his usual mental training and every now and then stopping because of boredom and thinking about his life.
'How do I survive these upcoming years without dying? I don't have any real combat training and I don't even know what I'm doing. Fuck I miss my family.
Am I even going to heaven for killing off that planet? Am I even going to this universe's hell?'
Clearly this idiot doesn't think out his choices well. Can you blame him though? His reality has shifted into this world of dragon ball and he still can't believe it.
Wiring the tears from his face he takes a gulp of water and gets up and Shadow box in his max power form.
Elsewhere in desolate space
Location: Ship
"Hey Bulma is there any more chips, I'm still hungry."
"No Gohan you've already had 4 bags today!" Bulma says Clearly annoyed.
"Yeah you gotta save some for us Gohan." Krillin protests.
"Hey no fair krillin had 4 bags too." Gohan says, defending himself.
"Wait WHAT!? You're telling me I only had 2 bags total out of there and you both ate 4 TODAY!!?" Bulma cries, absolutely astounded.
"Hehehehe" krillin and Gohan both chuckle scratching the back of their headwith sweat coming down slowly.
Back to Brian
'Y'know, this would've been so much better with a system. I wonder if the dragon can even understand the concept of that wish. Maybe unlimited ki would be cool, I would have to make sure ginyu doesn't take over my body though.'
He shivers at the thought of a doppelganger with his same powers.
'Maybe eyes that replicate the sharingans abilities.How would I name it to gain the most power out of it? Maybe the ability to read moves, combine that with ultra instinct and beerus would be furious trying to hit me.'
Brian start grinning ear to ear imagining him fighting the Lazy Feline God of Destruction, weaving every move effortlessly. After a while he started drooling subconsciously then he noticed and zoned back in.
'Other than that I'm lost, I'm just ready to throw hands and put belt to frieza so I can get all the glory.'
He has the plan all formed up, he's gonna say he's a saiyan that stole a ship from the planetbhe was supposed to take over instead of killing them. That way he can be labeled as a good guy in anyone's eyes he say the alibi to.
Speaking of future endeavors he remembers that he needs to look for the dragon radar he stole long ago so that he can gather them if need be.
A couple of weeks later
"Arrived outside Earth's orbit." The ship notifies
'Ahh finally I can get fre-'
"Warning. Forein Ship exiting from Earth's orbit." The ship says
'What the fuck who is that?'
Brian presses a button and says confidently,
"I command you to follow the foreign ship to its location"
"Now following the foreign shop to its location."
"Huh I guess I finally got lucky and hit a jackpot, isn't it my lucky day huh?" Brian mumbles to himself sarcastically
Now knowing he can't go relax in Earth's fresh orbit until further notice he begins to think about who he could be following right now.
'I didn't know I was even here that long for ships to be coming and going, but if they are leaving orbit there's only a couple of people who would leave in a ship. That would only leave the times when Bulma and her Bodyguards went to namek and when goku get to namek. Shit I hope it's the latter.'
'I really gotta lock in right here because I might die doing this. But my body feels so ramped up knowing what's about to happen.'
6 days later
"You are about to enter orbit be prepared to land soon. " the ship declared.
"I'm so glad I turned on the ship speech she kind of sound like siri." Brian says to himself as he puts on green and red saiyan armour with pants and a cloak.
Those past 6 days he had been physically exerting himself extensively to exhaustion then had 2 rest days to really prepare for the war that will ensue on this planet, ultimately leading to its abrupt destruction.
After getting dressed he goes in the kitchen and drink a cold bottle of water humming to himself while waiting to land.
"You have safely landed on the planet, it has sufficient oxygen for exploration." The air system notifies
It landed as he was opening the bottle getting a tsk from Brian in annoyance but he doesn't care, he's gonna finish the bottle before going outside.
He also has to use the restroom before he goes.
10 mins later
He washes his hands and finishes his water, only then does he open the door towards outside.
While on the toilet he felt goku power level flare up and fly away, likely going to the ginyu force. Makes his job easier to pull up late to the fight anyway.