Saori Tatsuno is human tenant of the Beastman Apartment Complex and is a Doujinshi writer, known to write erotic manga. She has reserved, weary appearance, featuring choppy, neck-length black hair with fringe bangs. She wears rectangular reddish-brown eyeglasses set over tired, heavy-lidded eyes and maintains a neutral, impassive expression. She sports a slim figure with a notably large bust. She uses the cat girl residents of the apartment complex for pose inspirations for her hentai manga.