Miyoko Kinjou

A girl who sits next to Handa in class 2-7 who later becomes one of his stalkers. She was originally a kind and shy girl, but following the events that led up to Handa unknowingly convincing her not to commit suicide, she develops an obsessive personality. She goes by the nickname "Eraser," as she "erases" those who attempt to disturb Handa-Kun. This is also due to her obsession with the eraser that Handa lends her earlier in the series, which she now carries with her 24/7.