You just copied a manga (i don't remember the name). You even made it worse than the manga with the grammatical errors in it. If you want to read this book then dont just find the manga for it.
lol, learn how to read the authors note, and its not based on the manga if you dont know how to read the note, its based on the novel.
The character was based on that world Mc.
and Grammatical error?
Who follows that? this is not a book that gets paid lol, go read novels, not fanfics