Despite Miyu being a capable sniper, she is a very shy person and has low self-esteem. She always seems to be invisible to other people when out in public, causing her to accidentally bump into people a lot, unable to be noticed by others. Not even automatic doors can sense her virtually invisible presence. Her biggest fear is her being forgotten by everyone, including her own allies.

Voice Reference: Gotō Yūko (https://bluearchive.wiki/wiki/Miyu/audio)