[VEC-402] Yumiko Sakura, My Mother's Best Friend

The students were in trouble because their concentration did not continue. Even if you want to continue studying, your concentration will soon be interrupted and you will think about the naughty thing. It was Akira who had been troubled by such a trouble, but ... Yumiko, my mother's best friend, came to see me by chance today. When yumiko sees the rich valley, the anxiety swells further. I couldn't stand it, and i was sitting in a room masturbating. Yumiko suddenly came and...