"I will follow Ryuu. If he goes to the Military Police so am I. If he goes to the Garrison then so am I. If he joins the Survey Corps then so am I. Besides if I and Ryuu didn't come you would die an early death. I don't want to lose more of my family." Mikasa soon answered Ryuu is her only family while Armin and Eren are her only friends if they die she has no reason to continue living so she might as well join them