Fujino has become a master of the insincere smile, having grown accustomed to changing schools frequently in his youth. Though he's now at his fifth school, his well-mannered grin has helped him build new connections. One day, however, he discovers a scarred boy sleeping on the school rooftop -- the infamous "Mad Dog" that his peers are all afraid of. As he watches the sleeping figure, the Mad Dog suddenly awakens...
This tale follows the unexpected romance between an unsocial delinquent and a model student with a heart of gold.