you know you're having a day when you make several different versions of the same character for a demon slayer au. you have not finished demon slayer! you're only at volume 5! but you could not control your brain.
and so now talloran is just James and he's gotten caught up in a time travelling experiment. and it went horribly wrong. and now he's about to get mauled by demons. and he takes two katanas, nichirin swords, off fallen demon slayers. and as time feels slow, he slices the neck of the beast, guessing it's a weak point, or enough to kill. the blades shift colors to black and white. and as he's found with the shifting blades, he's told that the blades accepted him as their new wielder.
and James begins to bend the flow of time to his will. able to speed it up and slow it down, reverse or stop it entirely. (mostly) befriending the main cast, and joining in on wild misadventures. trying to get back to his original time - and his beloved.

but also stanley parable James. it's complicated.