Mayura Hoshitsuki, a true masochist, voluntarily stars in this production. She introduces the Mayura Doll, which grows by being drenched and forced to swallow large amounts of sperm. One day, a man obtains the Mayura Doll and begins subjecting it to various lewd acts—cunnilingus, blowjob, sex—but the doll remains unable to speak or open its eyes. Only after receiving nine consecutive facial ejaculations does it finally awaken. Gradually, through forced orgasms via squirting sessions and vibrator torture, the doll evolves until it gains the ability to speak.