Inheritance: if one were to express it with a different word, it would be "curse." Guy, an inheritor of a heart Bubuki, was released from the curse through the only possible method... only to have it return to him in a sudden turn of events. In anguish, Guy made up his mind to eliminate from this world all the Buranki that had tainted human blood and placed this detestable curse on them, thereby returning the world to untainted human hands. Now, 16 years later, everyone watches the sky as a huge comet approaches Earth...