'The Knight Only Lives Today' is a super cool/fun read. it's on webtoons. (it is also called 'eternally regressing knight' I think? but idk if that's an official title or just an alternate translation.)
it's sort of like a time loop thing, but based on death- like, if he dies he wakes back up at the start of the day again, but if he doesn't die that day then he gets to make it to the next day- and then if he dies on this next day he'll wake up at the start of that next day- and so on and so forth. sorta like checkpoints.
It's technically a curse, but this guy decides to use it to his advantage to become stronger.
It's fun to watch him slowly progress through things whilst also just straight up being batshit insane. bro treats death so casually. literally just dying every fourth panel and saying shit like "this is my 150th Tuesday in a row, and I think I've finally got this sword technique down pat."
The characters around him are also really fun.
They just watch this guy mysteriously master a technique overnight like "what's this guys deal? he keeps insisting he's not a genius but he's also mastering these techniques so quickly? I respect him so much."