When the murder of his entire family is cleverly orchestrated and covered up by the Hongo clan, Tachibana Katsuki throws everything away in order to avenge them. Several years later, he is a music teacher and engaged to the beautiful and rich Hongo Misao – revenge is in sight. Except he didn’t plan on falling for the cheerful and lovely Mizuki, his student and Misao’s cousin.
Simply said, a past of dark and twisted complexity ties them all together, and Misao’s sister Mio is going to tell you all herself. Murderous intent, secrecy and darkest revenge… how will these blossoming feelings survive?