After 500 years, X reawakens in Remnant as the last of his kind. He must now join forces with Team RWBY to forge new friendships and gain new powers in preparation for a battle with the greatest threat their world has ever known. A force more dangerous than either Sigma or the Grimm. The Ultimate Nullifier is rising. "Characters" section subject to change.

As the new school year begins Rock finds himself advanced two years without warning, skipping the end of his time at Signal and beginning his time at Beacon. Even combat school can be difficult when you're two years younger than everyone else, but Rock is determined to make the best of it, and to prove to his brother X that he can handle himself.