Review Detail of sorantonata in Yours, Ours, Us

At first I am interested to read this story. But after a few chapter it start to feel like I am reading a slightly different but still the same "doomed to be a canon fooder". I love that story so i kinda felt disapointed when I read this story coz the opening is the same. Too much similarity. I don't know if it would develope into an original story ltr on.. I hope that the author could please think a way to change it into an original idea... or is this a fanfic crossover alternate universe genre😉