I quite like this. It's an incremental/idle game with a story (being reincarnated as a dark lord) which I don't usually find so this was a treat!
I liked that there were multiple paths and that you could visually see things you've done in the past and their rewards/costs. Seeing the past actions laid out like that, it really gave me the feeling that I was remembering past lives, versus how usually in these types of games the player has to remember each detail to figure out what they're planning to do- which can become annoying when you're on run 832 and can't remember where you get a sword for the boss or whatevs.
I don't think I quite understand the shadow clones. I had thought they'd be doing tasks alongside me, but that doesn't seem to be the case? I mostly left them alone since I'm not a plan-by-ordered-list kind of person.
I do wish that repeated actions took less time as you did them per run. Like, re-growing limbs. As in, run 1 it'd take 4 seconds, and run 12 it'd take 3 seconds or something. That's mostly a personal preference, though.
I also am amused by the way that the demon lord looks, like an evil Midoriya. I'm not sure if that'll be changed later, but for now it feels like a fun joke.