Ginko comes to a village where another Mushi master is named Yahagi.  He finds that she and the villagers are going to burn down the mountain foliage in order to stop a mushi infestation.  He tries to stop them thinking that this will only cause more problems but is too late.  The mushi react to the fire and cause even more trouble.  Ginko eventually is able to help Yahagi and enable her to again help her village overcome the problem.