It's a Netflix CGI anime, directed by Takashi Miike and based on a Capcom game franchise. The first game was released in 1997, originally conceived as a ninja version of Resident Evil. As for this anime, it's pretty forgettable. It's CGI and isn't trying to hide the fact, so already isn't worth watching... but the CGI itself is decent enough. At least it's cel-shaded. The action scenes are pretty good and the dialogue scenes are okay. Some effort has gone into making these CGI characters do some acting and the show's borrowed the likeness of possibly the most famous actor in Japanese cinema. Their hero is:

MIYAMOTO MUSASHI = legendary undefeated Japanese swordsman from the 17th century

...and they've rendered him as:

TOSHIRO MIFUNE = legendary Japanese actor best known for his films for Akira Kurosawa. He really did play Musashi, incidentally, at three different stages of the historical figure's life. That was Hiroshi Inagaki's Samurai Trilogy (1954-1956), the first of which won the Oscar for Best Foreign Language Film.

As for the story, it's what you'd expect. Samurai fight demons. That sums up almost all of it. I watched the show and didn't scream in pain, but I'd be hard-pushed to remember any details in even a couple of weeks' time. Maybe the scary butler from hell? There are also zombies, unless perhaps they're ghosts or monsters or something. Musashi has the mythical "Oni Gauntlet" and will go all red-eyed and dangerous.

Musashi is pretty cool, though, and made me laugh with his response to being told to grow up. ("I'll think about it.") He beheads the parents of a young girl, who was the only character here I found interesting... somewhat, a bit.

To be honest, I wouldn't have watched this if it weren't for its chief director. If you're curious about Takashi Miike's first anime... well, it's not worth your time. There's nothing actually wrong with it and I reached the end, but it's passable action nonsense. No more, no less. I briefly liked the guy in episode 7 who believed in exterminating samurai (hurrah), but then we learned that his objection to samurai was that they're too soft. He wanted wolves who can bite out their enemies' throats. "We're going to winnow them down to find wolves among dogs!"

In fairness, though, it's above expectations for a Netflix CGI samurai anime.