You know what time it is, you and him in an empty world. No reasoning, romance or talking out of it. One of you has to kill the other to get what you want and go home, starts just in the Infinity Castle with no sun for fairness to Akaza. You can either find a way to obliterate him so quickly his regen can't keep up, have Nichirin or do whatever voodoo shit to win. No set or forced power system for you and it takes place shortly after he dies in Kimetsu No Yaiba. Have fun fighting lore accurate Akaza!

I gave him his full Blood Demon Art and techniques, his fighting style, his regeneration and other demon abilities, as well as his speed and power.

Next characters name starts with a T, can you guess who he is?