Translucent, stunning J○ "Marin". Her charm lies in her responsible personality, aiming to become a civil servant in the future! Her uniform perfectly highlights her cuteness and great figure. Taller than expected, with a fantastic voluptuous body! Though visibly nervous, she blushes and says "embarrassing" when briefly mentioning her boyfriend. When offered interview compensation, she refuses saying, "I don't get allowance!" Yet when asked "Sex?""I did it a week ago (laugh)", "Why are you asking such things???", we introduce her to the full-on squirting verification project. Highly cautious at first—"Squirting? I've heard of it"—but once Manguri-sensei restrains her limbs with a suspension device, she turns into a teary-eyed masochist, reacting with a soft "kyun". Whether it's an experiment or just a job, she cries out as the vibrator tickles her. Wiii~n, buzzing over her thighs, groin, and near her clit. Her body twitches irresistibly from the vibrations. She stifles her moans, but pleasure surges into her brain. Her eyes roll back, "I'm gonna come~", and she uncontrollably squirts. A special vibrator is inserted deep, making her writhe her hips, "No, I don't want it... but I'm getting needy!" Nonstop squirting ensues. Manguri-style cunnilingus, restrained blowjob—her inner masochist fully awakened! Just the tip of a large cock makes her jerk; when fully thrust deep inside, her mind melts. Teased mercilessly, pounded hard, and creampie finished. Her nipples and insides hypersensitive, attacked simultaneously. "Don't make me say embarrassing things!" she pleads, grinding her hips wildly. The diligent girl's mouth flooded with thick, gushing cum, completely soaked. "My first time ever squirting, my first full penetration… it was incredible…" she smiles, accepting extra compensation. Our little secret from parents and boyfriend!