Death

Chiron swung his flaming sword as he reaped lives every couple of swings. His enemies were numerous, but his ability allowed him to erupt with great speed suddenly and kill a few of them every couple of swings, but for each swung he made, 10 swords and arrows it his body, accomplishing the bare minimum.

Day after day, night after night, he kept fighting. He made sure to occasionally remind everyone of his ability and every hour burst out with unimaginable speed to kill several soldiers, who were trading positions due to exhaustion.

And so time went, weeks passed by. Week after week, humans were sent to the meat grinder to slowly whittle away at Chiron, never letting him rest. Sadly for them, Chiron figure out long ago how to take power naps during the battlefield.

It took a couple of minute for the exhausted troops to switch out with less tired one and those few minutes every once in a while were enough for Chiron to take a short power nap of 15-30 minutes and revitalize his mind, if just a small bit. These bits of rest added up over time and the charm memory in his arsenal supported his mind just barely enough to avid his mentality collapsing and, gradually, he got better and better.

His plan was such, keep fighting till he is out of food and then some, until he can no longer continue and collapses. And a month of continuous fighting went by. Then another, then another and so forth until it had been nearly 6 months since Chiron came to this world and 5 months since his rampage began! But for him it had been much longer. His mind had spent over a year in his body, if the corpse he now occupied could even be called that.

He had killed more men than he could remember and has amassed countless memories. Of course, he has lost countless more to wear and tear from the constant fighting, having had 20 weapon memories destroyed in total.

Mostly due to the flame he himself used as a crutch when Elbaf thought he could sneak an awakened opponent into the battle and forcing the weapon to exert 120% of its potential. His body long since weakened.

Most people could barely even recognize Chiron at this point. The once mighty calamity had been reduced to a skinny "thing", that's sole purpose was killing. His original towering 7 feet height had been compressed to barely not over 3 feet. Most of his "2 handed weapons" were standard 1 handed swords he was too small to use one handed now and his muscles had been cut and withered down to look skinny on his smaller body

After the initial 3 months, no one considered him much of a threat anymore and Aranai decided to use him, rather than kill him directly. He had run out of steam to continue his slaughter, but he had kept going out if sheer willpower. He fought for 2 months while starving, his only source of drink being the occasional rain.

He was used as a whetstone to weed out the weak and train the strong by his enemies, as Elbaf had completely given up on killing him and he himself was too fearful to attempt to kill Chiron, thinking the weak exterior was nothing but a facade, that he was pretending to get him to lower his guard, allowing a fetal strike.

And, to a certain extent he was right. The first month of Chiron appearing weakened was a trick, but later on he had truly weakened too much to escape. By then, Elbaf was given direct orders to not have any awakened approach Chiron and he has to listen to what he considered the greatest mistake Aranai had ever made.

After the continuous fighting, his body gradually acclimated to becoming smaller. Chiron had to chip away at his own heart to support his constant shrinking and this was damage he would never be able to recover from. He was indeed too weakened now to do anything and on this fateful day, he finally collapsed.

He didn't collapse out of exhaustion, not from injury, not from an enemy attack. His heart simply stopped and he fell down. He no longer held a weapon and neither did he have enough strength to walk or even move. He returned his time back to normal, curled up into a fetal position and died.