Shiromiya Kaede

The school nurse at Inamura Academy. A beautiful woman with glasses. She is tolerant of students skipping classes, but is terrified of those who are injured in fights. She is well versed in eroticism, even bringing masturbation equipment (sex toys) onto campus, and is tolerant of students' sexual activity (but does warn them), but becomes extremely flustered when she witnesses it in real life. She is a smoker, and as a hobby she has installed a large industrial ventilation fan in her room without permission, and sometimes plans to conduct human experiments using suspicious chemicals that require notification to the government.
She is drinking buddies with Saeko, and whenever Saeko gets out of control, she is forced to listen to complaints about Saeko's brother (she even prepares a doll to take her place).