Fists of the North Star is one of the pioneers of action kung fu manga. It was released in the 1980s, amazingly, the art style doesn't look outdated even today. The characters are super detailed, the kung fu moves are beautifully drawn.
The story itself is quite interesting as well. The second half of the manga is less interesting than the first half. There are a lot of deaths, the majority of the characters died, many in glorious ways.
I read this manga as a kid, I remember reading this one in classes. Any manga that is interesting enough to make me skip class I would consider good. There is an ongoing re-release of this manga in hardcover collector edition. I highly recommend this to anyone who likes action manga.