Yui Kato enters her second year as an actress with a special project: her first-ever hopping vibrator experience. To capture Yui's genuine reactions to the remote-control vibrator—something she's never touched before—she arrives on location completely unaware of the shoot details. At the start, Yui obediently closes her eyes as the hopping vibrator is placed into her hand. "Today, we're going to put this inside you and take a little walk," she's told, then led to a secret staircase in a mixed-use building. There, the vibrator is pressed against her pussy as she pulls up her panties, kicking off a heart-pounding date. Accompanied by the director, Yui heads into the city, and while paying at an outdoor cafe, the prank begins—the switch is turned on. Crossing her legs tightly, she struggles to endure the buzzing sensation. Sitting side by side on a bench, the vibrations even transmit to the director, causing both to burst into nervous laughter. Once alone in a hotel room, Yui boldly spreads her legs wide, her eyes glazing over from the relentless pulsing. Her clit melts under warm cunnilingus, sending her into dizzying orgasms, while fingered stimulation pushes her to the brink of urinary release, heightening her sensitivity further. She mounts a fully erect cock, grinding with insatiable hunger. The hard shaft rubbing deep inside her vagina makes her breath tremble as she cums again and again. This release includes an exclusive special making-of, showing behind-the-scenes footage. Yui, a mental masochist, applies her self-disciplined mindset not only to sex but also to dieting—driving herself relentlessly in pursuit of fleeting release. Yet she hides her struggles behind a cheerful smile, a true sign of her submissive nature. It's also fun to compare her stated preferences and see how closely they match her own experiences!