Taeko is 71 years old, but she is still active, youthful, and charming with an undiminished libido. One day, feeling sorry for her grandson who has been heartbroken, she plans a family trip. On the surface, it is a heartbroken trip, but in reality, it is a scheme to take advantage of her grandson's depression and make him her own. While her son and daughter-in-law are not aware, the lustful demon closes in on her grandson.