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...
Wakana-chan!
!واكانا-تشان
Wakana-chan.
-No te preocupes.
-¡Wakana!
-No te preocupes.
-¡Wakana!
– Ne t’en fais pas.
– Wakana !
Wakana-chan!
Вакана!