A documentary-style film shot in Shinjuku, capturing 20-year-old Aimi Otosaki's very first alcohol experience. Known as a music major, she was randomly approached on her way home from school and invited to participate. Initially hesitant, she eventually agreed after being reassured with phrases like "just a little won't hurt" and the promise of compensation. Starting with drinks she picked out at a convenience store, she begins her real first drinking session in a hotel. Surprised by the alcohol content and moved by the taste, she gradually drinks more, getting increasingly drunk. Her expressions and words reveal rising excitement from her first encounter with alcohol, along with a hidden sensual side slowly emerging. Trying various drinks like Smirnoff and beer, she shows genuine amazement at each flavor. As the alcohol spreads through her body, her sensitivity heightens, and without realizing it, she begins exuding a sexy aura. She enjoys nipple stimulation, seeks out kissing and handjobs, revealing her adult allure while still expressing the innocence of a first-time experience. She makes honest remarks like "Don't look at my pussy, it's wide open!" and "Handjob feels so good, I'm gonna cum," while also admitting, "I want you to fuck me, but it's been a while so I'm a bit scared," showing clear signs of her inner transformation. Ultimately, she confesses, "I loved every position—missionary, doggy, cowgirl—I came so many times," openly enjoying her first sexual experience. This film captures Aimi's firsts: first drink, first squirting, first vibrator session, and first cum swallow, making it a compelling portrayal of her journey. The sight of her pure emotions and alcohol-fueled excitement breaking free is deeply captivating. An especially cute and memorable moment comes when she wets the sheets completely during a drunken piss, then shyly reacts as the alcohol wears off. This title offers a genuine, heartfelt depiction of Aimi Otosaki experiencing both her first alcohol and first sexual encounters, presented in an authentic and unfiltered way.