A 40-year-old man running a dental clinic in Tokyo and his younger lover, 19-year-old college student Riku. She had little prior experience with men, and unlike boys her own age, she was captivated by his warmth and maturity. His kiss, something she experienced for the first time with him, carried a sweetness and depth unlike anything she'd ever known, drawing her in completely. Now, she actively seeks his kisses, utterly enchanted by his mature charm. That warmth and intensity gradually melted her heart, deepening her dependence on him. Here is the erotic relationship between these two, revealed in full.