once again, really well done; I felt there was a lack of introspect on Shiori's part though and her connection with Yuuichi could have been explored further...still wonderfully done!

That was a Christmas miracle for Shiori, because she fought for it.

Yuuichi meant a lot for the girls around him, but for Shiori; as your title imply, became her miracle. Thanks to their fateful encounter she didn’t commit suicide that night; then she regain her confidence day by day, meeting after meeting with him. Finally, when Yuuichi learned the truth from Kaori, his determination was the last bit of courage that Shiori needed to fight for her life.

Shiori’s miracle was believe in herself at the end. Good job.