The sales department of a certain company where big boobs enthusiasts gather. Misuzu, a sober employee who works there, is actually the owner of a hidden G-cup beauty big tits. Employees of big boobs enthusiasts didn't have to pay attention to their boobs, and everyone had a delusion that wasn't in Misuzu's big boobs. One day she is restrained and fucking, and one day she is forced to have sex by a handsome employee of De S ... In a delusion, Misuzu's milk is polluted without even knowing herself.