Mom, stop! Calm down! It's me, your son! The son was shocked and confused as his mother, Yuri, with wild eyes, lunged at his penis. A secret drug that makes women horny, which he had obtained by chance. Thinking lightly, he decided to try it on his mom by mixing it into her tea... it seems to have been too effective. This is bad. If he doesn't stop it quickly, something terrible will happen. The son desperately resists, but he is brought to his knees by Yuri's elegant techniques...