At Asama Elementary, the arrival of the charming and youthful teacher Mai Machiko causes quite a stir among the students and even the lecherous staff members. Despite constant attempts by her mischievous first-year students to embarrass her, from spraying water up her skirt to making daring grabs at her, Machiko remains a good-natured educator who goes to great lengths to assist her students, even if it means sacrificing her own dignity.