Biographical Information
Physical and Vital Statistics
Gender Female
Manga Chapter 39
Voice Actors
 Kasai is a classmate of Erika and Kyouya. She ends up becoming a committe member together with Kyouya for their school trip. During the time where Kyouya and Kasai have to meet up to discuss about the school trip they end up becoming really good friends which makes Erika quite jealous eventhough Kasai is not in love with him and it is later on discovered that she was just envious of their relationship and wanted to someday have a boyfriend as well.