Otonashi Miki

She came to Amidahara in search of her missing brother. She is an active girl who acts before thinking.
She likes to talk and eat sweets. She is good at sports and not good at studying. She is longing for love.

At first glance, she seems to be an ordinary high school girl, but she has a strong resistance to magic power, which is hard to believe for someone from outside Amidahara.
When she sneaks into Amidahara, she is armed with a submachine gun purchased from a local yakuza.