After a few seconds, the Rhythm Girl is tossed onto the man's penis as he grabs her, and they engage in sex. Packing Pests: The video begins at the candy factory, where an unseen male who takes the Employee's place sticks a hand from behind the cubicle.There is also an unseen man who seems to also get into sexual situations but mostly with the woman.
The woman that's subjected to sexual situations is the Rhythm Girl from the title screen. It is an erotic parody of the game Rhythm Heaven Fever, specifically Remix 10, the final stage of the game, hence its name. Rhythm Heaven Fever X, also known as Fever XXX, is a pornographic animation created by Korean animator/artist Minus8.