In the sultry heat of Ryorin Academy, Aoi Nanami, the strict disciplinary officer, finds herself in over her head - literally. As she supervises the swimming pool, her tight, revealing bikini struggles to contain her generous assets. Students, noticing her discomfort, use their tongues for more than just tasting the chlorinated water. Aoi, initially shocked, can't help but succumb to the sensation of wet lips and eager hands. She returns the favor, her mouth filled with throbbing young flesh, as another student joins in, turning this disciplinary session into a threesome of epic proportions.