Wakana-san's Secret / Naisho no Wakana-san

The main character of the hentai, Muto Wakana, is married to a man who is 15 years older than her and they have a 3-year-old child. She is very young and fire burns within her. One day they went to relatives and there her object of desire became a high school student, Takashi-kun. Now Wakana will let loose, teaching the young guy.