Writing Quality: Based from what I know this is a Chinese fanfic, not sure if the Author is the translator or just fixed the errors in the MTL but at least the english is good. 5/5
Story Development: 3/5, there are some cases which are original but when the case is part of Detective Conan, the protagonist just abuses his memories. It's alright as I would do the same, but at least allow Conan to solve some of it, after all, how would Conan grow if he can't gain experience.
Character Design: 1/5, this is strictly criticizing the MC. For some stupid reason, every reincarnation MC I see always has the capability of Photographic Memory. Dude literally remembers the whole Detective Conan series.
Updating Stability: 3/5, from what I know the original already has over 1,000+ chapters. We just need to wait for the translator to fix the errors in MTL. Although if you really want to, I believe the MTL has more chapters.
World Background: 3/5 because this is just a fanfic and would most likely revolve around Conan, etc.