A fifteen-year-old named Eishi Karasuma is a loner with a monotone life. His only friend is Mikisada Kamoda who is 14 year old. They venture together while skipping class one day. In a park they meet Tsubame, a very energetic girl and Rei Sagisawa (15 year old), a pretty boy that attends the same middle school. On their way back to school an accident occur. A mysterious boy with wings comes to save their lives.