Arale's beautiful teacher and Senbei's dream girl. After a long period of unrequited love and nervous misunderstandings, Senbei proposes to her while thinking she is out of earshot. Surprisingly, she accepts immediately (while on the toilet, no less) and they are married in the next manga panel, resulting in a name change.
Also known as: Midori Norimaki (則巻 みどり)