Rei's mother notices something strange about her son, Haruo, who has been raised with salt. Because, you can see the behavior that is clearly different from before, such as taking a sloppy attitude of others and being sloppy. However, Rei thought that Haruo's behavior was due to puberty and did not care too much. One day, when Rei, who was taking a nap, woke up, Haruo was quietly rubbing Rei's boobs ... I'm drowning in the pleasure I've never experienced before with the exquisite touch of rubbing so as not to wake it up.