Kanna finds herself in a vulnerable situation with her master in the bathroom that morning.
She felt a sense of relief knowing that her teacher, who is also set to become her stepfather, wouldn’t bother her during her exams today. However, he catches her off guard. Kanna attempted to brush it off since her classmates were nearby, but the only one who saw what transpired was Mei, her best friend who had introduced her to the gyaru lifestyle.
Following that awkward moment, Mei playfully teases Kanna on the rooftop, revealing her true motives.
A serious girl transitions into a gyaru, only to face discipline. As their teacher is on the verge of becoming their father, other significant changes loom on the horizon for them.