Mystical forces are powerful in the Karasumori region. For over 400 years, barrier masters known as the Kekkaishi guard the land, exterminating the supernatural beasts which appear there night after night. Following in the tradition that has come down through the generations, Yoshimori Sumimura, a 14-year-old high school student, is the twenty second Kekkaishi of his clan. Protecting people from danger while growing stronger himself, Yoshimori will battle the forces of evil!