My friend's mother

One day, she divorced her husband two years ago and was living with her son Akira. Akira brings back a friend named Takashi. Reiko, who had thought that she had been making Akira feel lonely up until now, was truly pleased to have made friends. However, Takashi's true purpose was Reiko's body. And this encounter with Takashi will greatly change the fate of the parent and child...