Darkness and despair that was what was on the mind of a young man as he thought back on the past, on the events that had came before this moment, this one moment of what he would hope would lead to something that was far different than the years before this moment, the years of sorrow, the years of sadness and years of death. The young man stood there in his own orange gi, a couple of scars upon his face as he looked out on the broken world, so much of it gone and destroyed, the flower of the world crushed on the the feet of two people two people who had brought the world to its knees just purely for its fun alone. He let out a deep breath as he cleared his mind standing there, the dark haired half saiyan saw the ruins of a once great city around himself.
His mind went back to the beginning of this moment, the day the sadness began, he saw his home, himself in shock as he was running home from being out and having a small adventure, playing out in the wilderness. When he arrived the others were already there, they had arrived all at once to check up on his father who was in bed, sick from something and no matter what they tried, nothing worked, nothing could be done, no matter how much Gohan wished to do something there was nothing that could be done, and he had to watch his father die before his own eyes knowing that he couldn't be brought back.. He remembered that day so well as he knew that everything else happened cause of that moment.
Three years later when they arrived the devils that they were, the androids attacked so fast, as they were unprepared for the fight, Vegeta, Tien, Yamcha, Krillin and even his own mentor Piccolo died that day, another day when he failed. He failed to save those close to him, to protect them to give them a chance in the fight. It angered him even to that day that he hadn't somehow done more like fight with Vegeta and Piccolo against the androids, but he lived unlike the rest, and he saw what happened, he saw the death of cities turned into an playful act of destruction by two evil sadissstic demons. He saw the towns ripped away, people killed armies ended by them with no trouble at all, things were far from good, and there was no hope in the world.
The world grew dark and despite him gaining the power of the super saiyan there was nothing that he could do, nothing at all, he couldn't defeat the androids, they were to strong for him to defeat. He took a deep breath as he remembered a sad lesson about that, his other failure, that had happened three years previous to this moment, and had driven the genius Bulma to make the time machine that he was about to get in and use to try to fix the past of another people's past and make sure they didn't suffer in the same way as Gohan. He hated that failure more than any of the other ones that came before it.
It had been a normal day when he battled the androids same as normal it was one sided, for the most part even with him being a super saiyan. The battled lengthened as they fought around an amusement park for a good while, The battled had weakened Gohan down as he was sure at this moment that he would be killed, for good, but then it happened Trunks jumped into the fight, he wasn't even a super saiyan, his attack was brave but so stupid at the same time. He was torn apart by the androids who figured that making him watch his sometime student being killed would be more fun then just killing him that day. He had failed, to protect Trunks, he had failed to keep his friend from harm as he knew that it was his own fault that he was dead now.
He sat there as he thought about the other fights, which were no better but he had avoided a real battle with the androids ever since that moment knowing that he couldn't win and if he died then the plan would have no hope at all to work. He trained as much as was possible in hiding keeping out of sight of the androids helping when and where he could. He worked to be stronger so he might be of help to his father, and the others in the past. He thought about that, seeing his father again, a smile came to his face only when he thought of that possible moment. Any other time, there would be no smile upon his face as Gohan knew that there was nothing to smile about. He thus worked his mind to focus on that reunion that return his goal to help and change their future, throwing his mental genius in with that of Bulma making a sure of the illness as well as perfecting the time machine as well. He was a man of science and war, a fact that Chichi had made sure of, but he knew intelligence was useless in a world of war like he was In.
Walking out form the room he looked at the yellow machine and smiled as he waved as he looked through a window to Bulma before seeing that hope was written upon the time machine. Perfect, this was the chance to spread hope and prevent everything that had happened in his own timeline. It was his chance to correct his failings in a way and protect someone. He knew that he had to do this, for his father, for his friends, for Trunks. He had to protect them in another universe even if he couldn't protect them in this own universe. Gohan checked the numbers on the machine and made sure they were set right, and then he pushed the button that would send him into the past, to change the world.
A/N- Hope you liked this introduction.