The world is plagued with the strange illness, [Voice] that affects teenagers. But when one's feeling is disrupted, a "bunshin" or a clone will appear and it will say everything you truly feel. However, this illness does not pose any danger to one's life. Satsuki, a 2nd year high school developed this illness during that "incident" during her junior high school. Ever since then, Sayoi became protective of Satsuki…