Onee-san is very tall and generally has a scary and cold expression. This makes other people very intimidated of her. In actuality she is just extremely shy as she has been bullied in the past for her appearance. She is 22 years old and used to work as a voice actor. She is currently a hikikomori and secretly a VTuber. Her VTuber avatar is a cute and very outspoken short and petite blond girl called Hanae Fuwari-chan. Onee-san has long black hair and brown eyes.