An 18-year-old beautiful girl born in the Heisei era experiences her first lesbian encounter in this film. Skilled lesbian older women "Hina & Runa" warmly support her and guide her into this new world. Her expressions, filled with tension and nervousness, convey innocence and pure emotion that deeply resonates with viewers. The depiction of her highly sensitive, tight young body further enhances the appeal of this work. Because it's her first time, her honest reactions and feelings shine through, making this a truly authentic and moving experience.