A new piece could change so many things, but the same applies for pieces that could be aligned better as well. The world of RWBY with small, but major changes that would change their world as we know it. An AU Crossover fic.

What happens when the collective consciousness of the Earth orders the extinction of humanity? The Grimm. Soulless creatures hell-bent on cleansing the earth of the human scourge. But humanity refused to die. Extinction was unacceptable. Humanity had spoken, and the Will of Alaya answered. The Counter Guardians. The Beasts of Alaya. I have created over a thousand blades...

At the climax of the Fifth Holy Grail War, Shirou finds himself unwillingly pulled into another world, one filled with dark soulless creatures. With only his blades and the help of three fellow warriors, he must defend his new-found home from enemies, both new and old.

Seven New Magi in a new holy grail war. Betting their futures and dreams on this one bloody battle, the participants realize that the servants they have summoned are not any of the legendary heroes they knew and recognized...

A one-shot series with each chapter focusing on a RWBY character that is summoned into the Holy Grail War. (May change rating to M later on)