In the sky.
Goku looked at Sun Wuxiu's "shocked" expression and continued.
"Big brother, even though your Kaioken is powerful."
"As far as I know, though, Kaioken has its limits."
"You just used four times Kaioken. Your body should already be under strain, right?"
"To catch up to my current battle power of eight hundred billion..."
Goku held up his fingers and did some quick calculations.
"Your base form is five hundred million, and Super Saiyan 2 multiplies that by a hundred, making fifty billion."
"To reach eight hundred billion, you would need to stack—sixteen times Kaioken on top of that!"
"Sixteen times?!"
Goku shook his head, his tone certain.
"That's impossible."
"Even with your miraculous regenerative ability, big brother, your body would completely collapse in an instant. You wouldn't even get the chance to recover."
"So..."
Goku wore a smile of absolute confidence.
"There's no longer any suspense in this battle."
"Big brother, you lost."
Sun Wuxiu fell silent for a moment as he looked at the confident Goku.
That was true.
Sixteen times Kaioken was indeed beyond what he could do now.
The instant he activated it, he would explode into a mist of blood.
Though the Dog Talisman could bring him back afterward, there was no point.
"Oh, my..."
Sun Wuxiu sighed and helplessly spread his hands.
"That's true. You're right."
"Even I can't stack Super Saiyan 2 with sixteen times Kaioken."
"Eight hundred billion... What a despairing number."
Hearing his older brother admit it himself, Goku let out a sigh of relief, while also feeling a little smug.
Finally!
He had finally beaten his big brother once!
However.
Just as Goku prepared to undo his transformation and go down to celebrate his victory.
"But."
Sun Wuxiu suddenly changed his tune.
He raised his head to look