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...
Everyone, meet your new friend, 
Sawamura Setsu-kun.
.جميعًا، رحّبوا بصديقكم الجديد، ساوامورا سيتسو-كن
Liebe Klasse!
Das hier ist euer neuer Kamerad.
¡Chicos, Setsu Sawamura
nos acompañará a partir de hoy!
Votre attention !
Voici votre nouveau camarade !
Ragazzi, lui è il vostro nuovo compagno.
Pessoal, este é o seu novo colega, 
Sawamura Setsu-kun!
Ребята! К нам пришёл
новый друг, Сэцу Савамура.