I have to admit, while I wasn't too inclined on reading at first, after a while I am glad I did. The story itself is better than some other Gamer Fics that I have read in that the MC makes smart decisions in regards to some problems, and the progression of stats isn't insane. Plus each chapter so far has some heft to it, unlike other stories that have a great chapter count, but the chapter's themselves are read within 5 mins.
Writing Quality (5): I found that the story is very readable, with no glaring grammar and spelling mistakes that I could find, not that I was looking all that hard. Even with the inclusion of the system, the structure is nice to look at and easy to understand.
Stability of Updates (5): Way too early to say much, but so far 10-13 chapter within a week is pretty good.
Story Development (5): I can say that I haven't felt myself getting bored of reading and can't wait for the next chapter. Each chapter feels fresh and entertaining, as compared to other Gamer Fics where the MC is childish and more or less copies The Gamer manhua in regards to development.
Character Design (5): An interesting idea of a human who can see through the mist. So far the MC has made smart decisions, while in the moment, and while some things were being rushed, like the talk with Daedalus, I find myself liking the MC.
World Background (5): Still a bit too early to say much. Nevertheless, what the readers do see is an explanation of various topics that are a bit obscure, such as Frey and his origins.
On a personal not, I like harems, but I also don't want this story to be ruined with the MC trying to obtain women as if they were pokemon. Regardless of that, if there is romance in the future, just make it gradual, and try not to ruin the various shippings of the Percy Jackson universe. I would also suggest to write chapters out, but not immediately post them. You should keep to a schedule of posting chapters, as to not feel the panic of releasing a chapter everyday, resulting in substandard work, and have a backlog of chapters so that you can ocasionally take your mind off writing, as to not have writers block which has ended many stores.
Overall, I am excited for this story, and feel that this story has the makings to be a great one in the future.