A married woman named Hikari struggles with her sexless life with her husband. One day, by chance, she has a physical relationship with a man other than her husband. She then experiences pleasure she has never known before. Her vagina is in constant orgasm from the intense kissing. Although she feels guilty towards her husband, she can't stop the affair. If it's found out, it would be bad, but it feels much better than having sex with her husband.
