Setsu's unconventional mother, Sawamura Umeko, has suddenly descended and forced him to enroll at Umezono Academy. In helping to assemble a shamisen which has lain long disused, he meets Maeda Shuri, a girl in the same grade as him. While all this is going on, Setsu reunites with his older brother, who he hasn't seen in a while, and they play shamisen together...
Matsugoro's blood flows 
in your veins.
...دماء ماتسوغورو تجري في عروقك وصوتك
Você herdou o sangue do Matsugorou e seu som...
В тебе течёт кровь Мацугоро, и это