Shortly after Trunks gave his solemn promise to help the Z fighters of the past against the Emperor, and Niy felt well enough to stand, the massive training sessions began.

"It's important to remember that you gain levels and experience faster by fighting someone of a higher level," Niy spoke, all business. "It is for this reason that I have chosen fighting partners for you. These partners are by no means permanent, and you will have fought everyone else by the time the Emperor arrives. For now however, pay attention. Vegeta and Rezan shall be paired, Mia and Goku, Trunks and Piccolo, and Gohan and myself. Remember, this is training, not murder. We do not have time for grudges or vengeances. Let us begin."

Rezan looked over at Vegeta and when he met her glance her eyes narrowed. How dare she be lowered to his level? Well, if he wanted a fight, he was going to get one. Rezan jumped in the air to jump onto Vegeta as was met with surprise by his fist in her face. Stunned, she put her hand to her cheek and felt the bruise already there. Then she remembered that because of the fight with Niy, Vegeta and she were running at the same power. Okay, so the game got a little harder. It wasn't even close to done.

A fury of punches and kicks overcame them as they continued their fight. Mia looked hesitantly over at Goku and Goku let a small smile to comfort her sneak onto his face. Mia smiled back, and let her wings shrink back to normal size. Once that was done, she leapt into the sky and Goku followed her. Her first punch he easily dodged and they became a blur of motion in the sky.

"Piccolo," the purple-haired boy spoke, turning to the green Namek, "I don't think I can do this."

The Namek put one of his hands onto the boy's shoulder and said, "Trunks, it's this or nothing. We're giving all we have to give because that's all we have to give. No one's expecting you to be or do anything but spar with your partner. Niy might have been a traitor in your time, but monster or not, right now she is our only hope."

The boy nodded his head, his face grim, but understanding. He lowered himself into a fighting pose and Piccolo mirrored his movements. They both glared into each others eyes and without a second to lose charged into each other onto the battlefield. Both of them were hardened with loss and hate and vengeance and the other fighters paused in their fighting to watch them, but after a few seconds went back to the kicking and punching they were all so used to.

"Are you ready kid," Niy asked, looking at the boy Gohan.

"Yes, I'm ready," Gohan responded, sinking into his fighting pose.

"Good," she replied, as he dodged her first attack.

Pretty soon all of the fighters powered up to the highest level and all of them had their own scoring of cuts, welts, bruises, and scrapes. Each had formed a grudging respect for the other, and they all (except for Goku and Gohan) tried their best not to show it. During the day they would fight with their chosen partners and during the night they would either grab themselves a few hours sleep, or more commonly fight with partners of their own choosing, trading their secrets from their learning to each other. For six days straight they would fight each other, always resting on the seventh, giving time for each fighter to rest, heal, and grow. After every six days they would trade partners during the day, the night still for their choosing.

At night, Vegeta and Rezan developed a habit of sparring in the thickest of the island's bramble. Piccolo and Niy would meditate some five hundred yards away, floating above the rippling ocean. Mia and Trunks would sit on a rock outcropping and talk to each other as the night went by while Gohan and Goku slept, ate, or did whatever a father and son do alone.

A couple of years and sweat and blood flew by and before you knew it, Death was ringing the doorbell.