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...
I'd rather people didn't mess with
 stuff they don't know anything about.
.أفضّل لو أنّ النّاس لا يعبثون بما لا يعرفون
Leute, die darüber nichts wissen,
sollten das nicht anrühren.
Si no saben nada,
sería mejor que no lo tocaran.
Si no sabéis nada,
sería mejor que no lo tocarais.
C’est pour éviter
que n’importe qui puisse le tripoter.
Sarebbe meglio che delle persone 
che non lo conoscono,
É porque ele não queria que
algum ignorante tocasse nisso.
Лучше бы люди, которые
не разбираются в нём, не трогали его.