MEMES_R_gud
While I understand The appeal two rewrite this and change some major stuff, you will essentially be creating a new fic, I would suggesttrying to save this one on another story title or creating a new one so that this story can be saved.Additionally, while I understand the appeal to get rid of the system aspect as it feels somewhat haphazardly added on, the reincarnation aspect does have a certain advantage to it when writing a fan fiction. it allows the author to manipulate the stories direction by using the MCs previous knowledge to target specific events that they want to change; in addition to this, it allows the author to influence the personality of the MC. At the very least I would suggest the 'Dream Fragments' approach that some authors use, where they have the character gain glimpses of a life not there own, a family they never had, and/or a future that may not happen. However with the implementation of this it takes A decent bit of planning as the dreams need to be mostly introduced early in the story/childhood to be believable.
After being a avid reader for so long I can confidently say that the best stories are those who stay true to their passion and not let others dictate the value of your work. Only you know what’s best for your work and how your creation is meant to be. I can tell you are passionate for this story and it’ lore. With that said I fully support your decision and will be waiting for the update. Thnx for the good read so far.