Mirim

Originally a poor rural girl from the village of Wasilica, Mirim sought to escape poverty by seeking a job at the Queen's Capital. It was there that she was brought in by Ymir as a test subject for her "Strongest Project", and became a member of the Queen's Army under a high-paying salary. She is equipped with the Hyper Vibration Armor and armed with the Hyper Vibration Sword "Infinite Slasher" a sword with a chainsaw-like edge, and the Hyper Vibration shield, all of which are powered by the Hyper Vibration Crystal. Despite being given the armor and weapons, she has a weak-willed personality. She eventually leaves the Queen's Army for the Rebel Army after Ymir tries to destroy her home village, in order to punish the villagers for sheltering Annelotte. She calls Annelotte "Big Sister".