Review Detail of bachingchung in Nanomancer Reborn - I've Become A Snow Girl?

The writing is pretty okay, just average. The story is about a reincarnated girl who lives for vengeance. It started great, but the author dropped a massive spoiler. from ch 400+ there's really nothing to look forward for anymore, no more mysteries to unveil. It's just mindless grinding and levelling. The character design are lazy AF. Nothing original, your typical cardvoard cutouts. Nobody engages for the MC to be a better person nor challenges her. They're all so dependent on the MC and they didn't even try to hide that. The World Background is dull AF. So Basically the world with dungeons and new lands. So it's really confusing because the author never elaborate on that fact, which breaks the immersion.