Today, Yuki Sawamiya has been invited by a swimming coach she knows for a special private lesson. The training session takes place at a hotel pool. First, they begin with stretching exercises to loosen up before heading to the pool. Yuki wears a tight-fitting school-style swimsuit, the snug fabric hugging her crotch and drawing the coach's gaze. Though visibly distracted by her figure, the coach continues giving instructions. Yuki focuses intently on her swimming, following the coach's guidance as he supports her body and checks her form. She remains unaware of the coach's hands touching various parts of her body during instruction, or the way he subtly strokes the fabric of her swimsuit. Completely absorbed, she seems lost in the moment, oblivious to his advances.