In the short time before Kaine was sent off world to go conquer a planet, which he would do in a smarter way, he learned about his parents. Your son will be sent to a lower world called Earth. A Saiyan scientist said. He won't not be as competent a warrior as you. Tch, whatever. Another voice said. My son will be stronger than even the Kings, son someday. You High class bastards have seen how strong Bardock and I got but we didn't show much promise at birth. The voice added in a condescending tone. You're just scared of potential, someone growing a pair and that'll be my son. That definitely doesn't sound like Bardock. Kaine said, concerned. You're delusional Rengakura. The Saiyan scientist walked away. Rengakura is the father of Kaine in this world. A low class saiyan with High Class Saiyan Power comprable to Bardock's own. He had similar physical features to Bardock but he had hair like Son Gohan's which Kaine had inherited as evidence from his own reflection. He was also dark skinned like me. Unlike Bardock he wore red saiyan armor with a similar shape to Raditz but with red instead of brown and black pants instead of a crotch guard.
Kaine was sent off world soon after that encounter with the scientist and sent to earth. I'm feeling sleepy. He said to himself. Shortly before falling asleep he got one last look at vegeta. It was quite the breathtaking planet. It looks alien but beautiful. "I wonder if there's any alien bad bitches out there" Kaine wondered off in thought. Cheelai and Zangya should both be canon in this universe. Same with that pride trooper chick. Plus android 21 in her Majin form. As well as the u6 saiyans and the angels. Damn I got some breeding cut out for me. Kaine thought, mischievously. He focused back looking at Planet Vegeta. "I'll slide for all my saiyans, count your days Freiza, your seat as emperor will be confiscated in 30 years time". Right after that thought, the system in the saiyan space pod chimed. "Hibernation mode activated" Kaine fell asleep instantly.
4 years later.....
Unknown to Rengakura or Kaine, he would take the place of his comrade Bardock, being the sole survivor of his squad and challenging Frieza, gaining premonition of his sons' countless success in the future. THIS WILL CHANGE EVERYTHING! Rengakura yelled. He shot a blue ki ball towards the Emperor Frieza but the cackling emperor would charge a supernova and throw it at both the saiyan father and the rest of his planet. The father saw one last vision of his son standing over Freiza with no fear in his eyes. HAHAHA! KAKAROT! He yelled before being reduced to ash on a dying planet.