16,Otaku(not in the otaku group), a bit shy, friendly and funny.
Hiyori has brown hair and a crimson red scarf, and a bandana. She cosplays AOT a lot.
Hiyori's friends include Nagisa Yamamori, Sakuya Hiroshi, Nakayama Kaede and others.
Hiyori is secretly a crow +anima,(half animal half human) and only Nagisa knows for now.
Hiyori likes to pull curtains in people's faces in the infirmary.