Atsushi falls in love with his best friend's mother, Shiona. I frequently went to my best friend's house to play, and I was excited by Shiona, but gradually I couldn't be satisfied just by looking at her face. At that moment, by chance, Shiona ends up teaching him yoga. The bodies of the two are in close contact. Her butt is a well-shaped butt protruding out in front of her eyes... Atsushi, excited by the lewdness of yoga poses, still endured that he couldn't take it with his best friend's mother...