@Rosa029992435
Because this series does right what a lot of other Isekai series don't, especially in regards to character focus and growth.
Way too many of them focus solely on how overwhelming powerful the main character is, and how easy life is by being so. Not that this series doesn't also do that, but at least it puts a good deal amount of focus on other characters, as well as introduce other characters that are just as powerful as (if not more than) the main character.
It's no where near perfect, but there's a fairly decent amount of detail in world building without it being too overbearing on the reader as well.
At least, that's what I think. I enjoy it 'cause it's relaxing to read, not overly complicated, and has its good moments.