Re Zero
The writing quality is very high. Huge world building with deep lore and lots of exploration, fluid Plot writing that also very realistic and convincing, with character depth, and even chronological Consequences (every action they do in the past makes them the person today). With chronological consequences, a mere character development is just another thing that were expected to happen.
Those trap catgirl, 400yo lolis, and fanservice maid have actual cause and effects to their personalities. Even the jerks, psycho killer, and arrogant bastards also have cause and effect with their character development.
You're not just going to see the development, but also the person they was before, how they realistically even develop to this point, and how they will develop in story, plus the possible development in future.
This also One of the extremely rare story where Bandit can actually defeat our otherworlder MC.
Re Zero also potray the power of those Fantasy people perfectly when compared to our world.
Many people think Rezero MC is just weak just because he's Otaku.
Nope.
Natsuki Subaru is actually very strong and near olympic level in our world standard, but those abilities were nothing compared to normal person over there.
He's the genius who know how to cook, play hard games efficiently, and know lots of world knowledge. His problem solving skill is very good, complete with martial art and body training.
It's just he's been under inferiority complex due to his father + one embarrassing incident that make people avoid him, making it hard to make friends.
As shown in story, he manage to socially interact just fine if nobody knew his past embarrassing incident.
When I first read this Web Novel, I thought this is the standard writing quality of usual Webnovel and I have been confused with the difference between LN and WN since both versions of Re Zero were very high quality.
Only after reading some bad fanfic and standard webnovel that I finally understand the whole quality difference between Webnovel and Light Novel and other stuff, also how great is Re Zero when compared to our usual shit Isekai webnovel.
Re zero is a Must read for Isekai fans and potential writer.