Aoi Yoshise, the talented and intellectual 4th generation principal of the prestigious 100-year-old private Yoshise Girls' Academy, is a "female principal" highly trusted by local parents. However, after a parent briefing one day, she was tearfully begged by a mother about "backdoor irregular admission" and couldn't refuse. A male parent named Nakata, who overheard this, begins plotting to make the beautiful principal he admires wear obscene sexy lingerie for lewd play...