Saiyan Legacy

In the furthest reaches of outer-space was a small, insignificant chunk of metal and rock. This chunk was known as the planet Vegeta and on it lived a warrior race. These warriors were called saiyans. These people were once forced to live in the wilderness and mountains but had recently overthrown the planet's original inhabitants.
Yasai ran through a war-ravaged street ducking and diving to avoid flying shrapnel. Out of a ruined skyscraper tore another saiyan. This one was badly wounded; he had cracks dotted around his armor and one of his eyes had been stabbed. His left arm had been partially mauled. The new saiyan somersaulted over Yasai's head and flew back, ramming into Yasai's back. Stumbling forward Yasai regained his balance and rocketed into the air. He fired a barrage of ki blasts down at his opponent below.
After a short while he stopped firing and descended back down to the now devastated ground. When the smoke cleared Yasai saw his opponent lying in a crater. To ensure he was dead, Yasai leapt into the crater and trampled his opponents head until it was dust.
Nearby he saw two other saiyans shoot up into the sky. One of them had black armor and was bald; the other one wore more traditional armor and had long, black hair. Yasai decided to join the fight. He saw that the bald saiyan appeared to be dominating the fight.
Yasai tensed to take off and flew head-first at the bald one. Knocking him back he raised his hands above his head and then hammered down. Yasai then spun around and launched a flurry of punches and kicks to the other saiyan. Suddenly Yasai felt a sharp pain in his shoulder. The bald saiyan was standing with a broken-off wooden pole in his hands. Yasai looked down at his shoulder to see the other end of the pole sticking out of his shoulder.
"This guy's mine!" the bald one said swinging the stick aggressively.
"You're gonna regret this." Yasai said ignoring what he'd just heard. Yasai looked around casually and then suddenly grabbed the long-haired saiyan. He hurled him at the bald saiyan and then fired wave after wave of powerful ki blasts at them both. Yasai flew back and charged an especially powerful blast and fired. When the smoke cleared, Yasai was alone in the area
Yasai tensed up and wrapped his fingers around the splintered pole. He closed his eyes and took a deep breath. Then he roared at the top of his lungs and tried to yank the pole out of his shoulder. After nearly thirty seconds, the pole came loose and Yasai threw it to the ground below.
He descended to the ground and began to stroll through the crumbling city. He looked around for any spare armor as his was damaged. He spotted a dead body next to an office block and flew over to it. He bent down to pick it up and suddenly hands came out from behind him and grabbed his neck. The bald saiyan whom Yasai had encountered earlier came crashing through the office block wall. Yasai started to choke as his opponents hands gripped tighter. Desperately, Yasai slammed his elbow backwards and drove it into his adversary's gut. Breaking free he span around and slammed his hands forward to attack again. Knocking the bald warrior back, Yasai spat out blood and wiped his brow.
"The name's Yasai." He said.
"I'm Kain." The bald saiyan replied as he began to power up.
Yasai also began to power up and his tail stood on end. He circled around Kain and kneed him in the small of his back. Kain tried to dodge the rest of Yasai's attacks but failed. Yasai kicked him up into the sky and then rocketed up to follow. He then hovered just below him and launched a powerful ki blast hurling him up, high into the heavens.
Yasai landed on the ground and put his hand on his wounded shoulder. Suddenly he saw a tiny dot in the sky. It was coming closer and getting bigger. It was Kain.