Akina was asked by her husband to be a tutor for her coworker's son. Since it had been a while since she had seen him, Akina was bored at night and half-sulked as she accepted the offer. But the next day, when she checked on the son's studies, she found out that he was a complete failure! What's more, he was so excited by Akina's sex appeal that his crotch was swelling. So Akina started a special lesson.