アイリーン・ニルヴァーナ

Likes: Biscuits, candy, relaxing out
Dislikes: When people (especially her students or children) don't listen to her

The homeroom teacher of class 2-A. Irene also doubles as a nun at the church and is knowledgeable about the school's history and past events that the students don't know about. She often has daydreams about a prince riding a white horse picking her up. She always rewards her students with candy when they succeed or in order to motivate them.