Mushi, a strange and primitive form of life, take countless shapes and affect the lives of humans without us even being aware of their existence. Enter Ginko, a mushi expert, known as a mushishi. Though his laconic smile and softspoken manner don’t seem imposing, he represents a bridge of understanding and sometimes a line of defense for the human world. When a fellow mushishi disappears, Ginko must search for him on a mushiinfested mountain, putting his own life on the line!