When the alluring teacher Mako arrives at Gyunabe high school, she encounters a group of unruly students under the leadership of the troublemaker Obayashi. Their relentless antics, including attempts to catch a glimpse of her undergarments and humiliate her publicly, challenge her resolve. As if that wasn't enough, the principal's decision to appoint her as the new rugby coach adds another layer of chaos to her already tumultuous experience.