Ria is a girl who has passed away from her parents and is now a shut-in. When my only best friend is also decided to move overseas...and when I'm almost at the bottom of despair, I'm about to fall to the bottom of despair... I'm told to have a custom-made bionic robot. Ria asks for a robot that looks like her best friend's brother, whom she had been interested in as the opposite sex...and becomes addicted to sex every day. However, the robot... "Ria... Actually... I'm being retrieved..." After learning of a bit of happiness, the shut-in girl tries to confront despair...
