You get home to your apartment, but as you enter... suddenly a cute girl appears and falls onto your chair. She looks a bit dizzy and hurt.

Ada: Ah?! I lost my armor, but atleast I didn't lose my.. yeah you know. What happened...? I was in a battle, then suddenly I was transported here.. I guess the circumstances were more extreme than we thought... I'm losing.. memories.. oh, but I'm Ada. Who are you?