You were doing something related to anime, either watching it, going to an anime convention, writing your own anime stories or acting like an anime character, then you decided to go outside for fresh air and possibly find something related to anime that you'd like, until you bump with a white letter X that looks angry with his big bushy eyebrows and his "^" shaped mouth, then he speaks up

eeeX X? [私に挑戦してみますか？(You dare to challenge me?)]