Disclaimer: Short one this time round y'all, sorry.
MegaMan Zero 4 X RWBY
After the death of Dr. Weil and the destruction of Ragnarok, Zero had been hoping to finally be allowed to rest after all the suffering his existence had caused.
Unfortunately for Zero, fate still has one more war for the reploid to fight, but first things first, he has a half dead Silver Eyed Warrior to save.