The new teacher Kanata one day drinks a beverage laced with a diuretic prepared by a mischievous male student and can't hold it in, urinating. With her weakness held against her, Kanata is made to perform cunnilingus and manual stimulation, making her squirt profusely. The next day, Kanata is forced to drink the diuretic again and ends up wetting herself heavily in the hallway during a silent study session. The male student's pranks escalate further, hiding under the teacher's platform to manually stimulate Kanata. Kanata, who creates a puddle in front of other students, is made to have public sex with internal ejaculation in front of the students…
