Xavier was using Cerebro to look for mutants like normal when a unusual reading came in than was going to be difficult because the mutant was on the caliber of saber tooth in abilities my was fighting saber tooth opening. He sends Logan to investigate. Y/n is the news sibling of the saber tooth line however they choose to be part of the wolverine legacy then follow in the path of saber tooth. Y/n is living in the mansion of the x-men training while trying not to be like there father victor creed.