Sounds like the real immortal experienceIt's really bad in a weird way. It reminds me of when I once read a story that was about... a tree. Yes, literally seeing the world through the perspective of a tree between time skips. But even then, it had a purpose in world building in its own weird and bad way. With this story on the other hand, I don't get the aim of the author. Forget world building, the author can't even establish the dang plot. The art is pretty good and it has a decent sense of comedy, but the problem is that the story goes nowhere. It is full of plot threads that abruptly terminate the next chapter if not the chapter it is in. You don't get the chance to care about any of the characters. They're meaningless and get like a panel or two of screen-time every once in a while to remind you that they exist. Or that they died. Who knows. It's basically a lot of "tell" and not "show."
Unless you like being blue-balled by empty promises and an empty story, it's a 6/10. I can only imagine the people who rated this highly did not get far enough into the story to realize how boring it is.
I finished reading the novel. It would take 500+ more chapters to reach the novel. You summed up the story pretty well. Illustrator carried this series and made it better. There's not much comedy in the novel, so it's amazing that the illustrator can insert gold comedy into an originally dry novel.The art is phenomenal and the comedy is genius. That's about where the good parts of this story end, tbh. The whole ideal of the main character is to be sitting in his cave, doing nothing for centuries at a time while grinding immortality. Realistic, yes, but not at all fun to read about for hundreds of chapters. We, the readers, only get to see 'action' when the author decides to show the system panel that TELLS all of us the crazy shit happening in the world, but doesn't show us.
The only thing you can look forward to if you read this is comedy between disciples, meaningless romance between the mc and the female sect members, the one climactic moment every hundred chapters where the mc shows up and one shots the final enemy of the arc with a new move he got thirty chapters ago just so that everyone and their mother can glaze him for the next arc until he does it again. Rinse, recycle, repeat.