Nagi is a high school student. He is quick to adapt, active, and likes girls. One day, a pretty girl, Stra, suddenly appears in front of him. She calls herself "The Prophecies of Nostradamus".
In 1999, one of his famous prophecies failed, and people are still alive. According to her, Nostradamus sent her to this world to show his power. She predicts what will happen to him in the near future, and it all succeeds. It's just perfect.
Like this, they begin to live together. School life full of laughter, troubles, and screams. What will happen to them in the end...?
The first visual novel developed by Navel's "sister brand", Lime.