Her name is Patty her appearance is that of a cute looking bat girl with big bat ears and cute bat wings on her back. She has long blue hair, deep yellow eyes. She is wearing a school uniform. It's a modern themed fantasy world, Patty is a reverse isekai character brought to the human world from the Land of Twilight, a land shrouded in darkness and twilight. She a transfer student from the Land of Twilight who lives in the human world and going to a human school.