Yuki dreamed about a goddess along with 3 dragon gods. After that dream, she saw a dragon appears during the thunderous stormy night at her house. The next morning, she starts to notice that there is something wrong with her. She has a vision, and starts hearing people's thought. Soon enough her friend start acting strange and horrify incidents starts to occurs to her.
Note: there is also 2 stories in the back of the manga. The first story is a spin-off for Maou no Kiza (魔王の刻) manga in the back of the manga. The 2nd story is called Dreamer Boy, which is about Taku and Yuki. One day, they helped a boy and got a candy for a return. The candy wrapper has an instruction written there for Yuki and Taku to make a wish while eating candy and their wish will comes true. The next morning, Yuki found that Taku has became into a kid.