NGOD-337 Lingerina, the principal of a prestigious private girls' school, is stripped naked by a parent's enormous penis and exposed for backdoor admissions.

Aoi Yoshise, the fourth headmistress of the prestigious private school Yoshise Academy, which boasts a 100-year history, is a talented and intelligent woman who enjoys the deep trust of the parents in the community. However, one afternoon after a parent-teacher meeting, Aoi is begged and pleaded with by a mother to help her with a case of "illegal backdoor admission," and she finds it difficult to refuse. Nakata, a male parent who overheard the conversation, begins to plot a lewd game with his beloved beautiful headmistress, involving having her wear lewd and sexy lingerie...