A cute and honor student club activity girl is forced to drink a drink containing a diuretic that is too strong by a student who loves mischief. Of course, she can't stand her pee, so she manages to reach the toilet, but it's in the middle of cleaning. She can't help it, so she was attacked at that timing when she was doing her business nearby, and on top of that, she panicked with embarrassment and comfort with embarrassing cunnilingus...
