Attack on Titan Season 2 Episode 5 English Dubbed Episode Title:Historia.Episode Description:In the past, Christa and Ymir became lost in a blizzard during their winter training in the mountains as cadets, while trying to save fellow cadet Daz. Ymir accused Christa of having a death wish rather than saving Daz for selfless reasons. She was also aware that Christa is an unwanted illegitimate daughter of a nobleman's mistress who was forced by the Wall Cult to change her name and join the army. Ymir then made Christa promise that she must live her own life if she ever reveals her true name. Back in the present, Ymir transforms into a small, nimble intelligent Titan and fights off the other Titans. Christa tells Ymir to destroy the tower in order to crush the Titans. As the tower begins to collapse, Ymir orders Christa and the others to grab on to her. Despite this effort, the Titans overwhelm Ymir, but Hange and the other Scouts arrive on time to save the 104th Cadets. With the battle over, Christa attends a gravely injured Ymir as the rest of the 104th Cadets learn that Ymir is an intelligent Titan. Just before Ymir loses consciousness, Christa reveals that her real name is Historia Reiss.