KUMASHIRO Ai (14-years-old) is an energetic and friendly middle schooler. Her childhood friend, Kotarou, is a goofy, 15-years-old guy who dreams of being a movie director. One day, on her way home from school, she finds an interesting looking quot toy quot and decides to take it home. The next morning, she finds an quot alien quot right next to her All the quot alien quot can say is quot Woo, Woo. quot What s Ai going to do with it ?