A seemingly unremarkable man called “Mouse” is caught by the police. In exchange for his freedom, he goes undercover, infiltrates a drug ring, and arranges a fake deal, but an unexpected turn of events occurs.
Years after retiring from their formidable ninja lives, a dysfunctional family must return to shadowy missions to counteract a string of looming threats.
Matsugorou Sawamura is a shamisen player of legendary talent. Upon his death, his grandson, Setsu Sawamura, lost his ability to play. Having lost his beloved sound, Setsu finds himself in Tokyo in search of a new sound to love. Tachiki Yuna, who works at a club, hooks him up with a gig to play there as a warm up act. Setsu imbues the sound of his shamisen with his many thoughts and feelings he has of others, still searching for his own sound and his own feelings.
