Aiko and Nao are childhood friends. Although they have different personalities and thoughts, they share a similar taste in things, such as falling in love with the same person. Aiko who is the muscular type and Nao who is more open-minded, have spent their youth following each other.

One day, they meet again for the first time in a long time and decide to go out for drinks. "By the way, ..., did you have sex lately?" I'm not sure what to say.

"What is suddenly heard?"

"Calm down. You know, we're past our prime. Do you think that's okay? This is the last time for women in their fifties to be in their prime! It's not a bad idea to fuck as much as you can anyway!"

Aiko feels guilty, but in the end, she is swept away by her childhood friend.

From that point on, the two of them began to engage in all kinds of activities, including reverse hookups and blind dates, and once they had experienced young sexuality, they became addicted to it and began the last eating spree of their lives.