There are a lot of things I love about this chapter, most of all the Sephiroth versus Cloud fight and Yuffie's appearance. My favorite thing about the fight is how seamlessly the materia is brought in, something a lot of authors either are clunky at or ignore altogether (one author claimed materia was too unrealistic as an excuse for not using it!), but you have it work very well. TBH, if FFVII were a movie or TV series instead of mostly video games (barring Advent Children ofc), I could see the fights being a similar style to how you've written them (it really is a shame we don't see too much materia use in Advent Children *sigh*).

And Yuffie is adorable as all hell as usual. x3 She's not my favorite, but I still love her to pieces and bitty!Yuffie is no exception. Zack may have gotten her antics in Crisis Core, but it's Cloud's turn now~ *cackles*