Mother's close friend Miyuki suddenly visits the house, stirring emotions deep within Satoshi. Entranced by Miyuki's beauty, his mind fills with uncontrollable fantasies. Acting on impulse, he peeks at her changing clothes and panics when caught. Miyuki gently smiles, appearing to understand Satoshi's inner turmoil. Then, she softly licks his cock, her warmth deepening his confusion. "Let's keep this a secret from your mother," she whispers, and her words carve a secret bond into Satoshi's heart.