I've now finished reading the entire manga. Nonetheless, in general... It's not all that dark... This is an excellent action manga. However, it is not as sinister or gory as everyone has claimed. Not as gritty or gory as Dororo, nor as daring as Chainsaw Man. If I had to compare the quality... It would be slightly better than Demon Slayer in my opinion. Sure, it's a must-read manga. However, for a dark action history-fiction manga, it is not as dark or gruesome as you might expect. I can't wait to see it adapted into a badass anime.