For a Tomorrow That Never Was

When she and her team took on the Search and Destroy mission with Prof. Oobleck, she expected fighting some Grimm and even some White Fang bastards. What she didn't expect was somehow landing herself 12 years in the past and, barely a day there, losing her arm. With thoughts of home and her teammates, Yang will do her best to recover what she lost. But at what cost? Time travel fic