The time where Zack was used as an experiment/MAKO-induced coma for 4 years, he was to transform into a Sephiroth Clone, but it ultimately failed since he did not respond to the experiments enacted on him during his unresponsive state. Before the few moments of regaining consciousness and breaking himself, and Cloud out of the mansion in Nibelheim, Zack was about to give up--give up on his life and simply die, floating in that test tube, swimming with MAKO. Briefly, his soul left his body; ran AWAY to a place of sanctuary and bliss, the Lifestream.
But, he saw a feather, a bright white feather in which, belonged to an Angel, oh--how he wanted wings to fly away from his troubles and war, he was ready--Zack Fair was ready to die at last, yet--a familiar voice pulled him back, a voice of a longtime friend and mentor, there he was, standing on the opposite side of the thick, test tube glass, glaring at the defeated Soldier with anger and disgust, “ You tarnish the SOLDIER name! “ he said, a cowardly death was not the way to honor SOLDIER, the TRUE way of SOLDIER. It was a way of saying.. it was not his time to die yet, still baring unfinished business with the living.
So, he broke free from his prison, shattered glass cutting in the ebony of his gloves and forearms, he felt sick to his stomach, wearily standing to his feet, the apparition of Angeal was gone, not to be seen, he then, went to receive Cloud from the other tube nearby, the Infantryman was dead weight, unresponsive; a vegetable, effects of severe Mako addiction, but.. luckily to be alive. They forced their way out of the mansion and escaped Nibelheim with their lives.
Flickers of horrendous memories oft’ played their tricks on his mind, serums in large needles, dissection, piercing screams ( some his own, some Cloud’s ) it was all a big haze, foggy, unclear, Zack had scars on his arms from multiple needle punctures, across his left pectoral, was a vertical scar as if he was cut open to see what was inside of him. Rough, patchy scars on his wrists and ankles from continuous resist against the restraints that held the poor Soldier down, on the back of his right calve was a 8-digit serial number tattoo, dictating what experiment he was. ( he does not allow people to see this, regardless ) ..and little did he know, he was implanted with JENOVA cells, a foreign substance from a rock from outer space.
Friends were now against him, considered him an enemy of the President and the Company, him and Cloud were being hunted down like dogs. Zack trusted no one now, not even close friends. Being haunted by the torture of the experiments, and SHINRA for the rest of his days.
