Retsusai, Monmon

洌才れつさい・モンモン

Monmon Retsusai, referred to as Miss Wriggle in the English dub, serves as the poetry teacher (or national/Japanese language teacher in Japan) at Mochinoki Middle School.
Monmon Retsusai acts as the "secret weapon" Mr. Touyama deploys in his history class when he attempts to fail Kiyo as part of his revenge. All the male students, except for Kiyo, became infatuated with Monmon's cute appearance, sexy voice, and large breasts. Although she is regarded as Mr. Touyama's "secret weapon," Monmon dislikes Touyama, even though she enjoys seeing him "love sick" over her (or "agony" in Japan).
Monmon Retsusai brings Gash and Umagon to class as her music assistance when she performs her song "Mon Mon" (known as "Love Sick Dance" in the English dub). While everyone dances to the song, Kiyo does not dance to it at all.