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.
After punching a famous curator in the face for criticizing his work as "textbook and lifeless," Handa Seishuu is sent to Gotō Island to calm his nerves and find new inspiration for his calligraphy. Growing up in the city all his life, though, Handa must adapt to country life while meeting an assortment of quirky people during his tenure.
