It all began ten years ago. D2s attacking Boston, a blood-soaked concert hall: The incident known as the Boston Tragedy. The conductor who lost his life in that tragedy was none other than Kenji Asahina, Takt's father. After losing his father, the boy decides to devote himself to playing the piano and he lets his rage play through his melodies. The one who took care of him was a girl named Cosette, who looked just like Destiny.
The threat of the D2s 
is not completely gone,
،لم يُزل خطر دي 2 كلّياً
Die D2 stellen zwar immer noch
eine Bedrohung für uns dar,
La amenaza de los D2
no desapareció por completo,
La amenaza de los D2
no ha desaparecido por completo,
et même si la menace des D2
n’a pas entièrement disparu,
La minaccia dei D2 non è
ancora sparita completamente,
A ameaça dos D2s não
se foi completamente,
Угроза Д2 всё ещё нависает над нами…