If you open the window, you can see the Kanda River, and in the four and a half tatami mats of a shabby apartment, a married woman knows pleasure... and love. ○A school teacher calls his student's mother, Yuna, to tell her something... He approaches Yuna, who is confused by her weakness, and thrusts his tongue into her plump lips, forcibly giving her a deep kiss. She refuses, saying, “I have a husband, so I’m in trouble!” but she is pushed down and with rough caresses and fingering, she can’t help but cum! Furthermore, the erect cock that cannot be accommodated is inserted deep inside, and the slender body is twisted many times to react sensitively! Yuna despairs at the hot white liquid dripping from her hairless pussy. ``Please keep this a secret...'' However, Yuna refuses to leave her teacher's shabby apartment and deepens her love for him.