Kekkaishi

Yoshimori Sumimura is a junior high student who works as a kekkaishi at night, using magical barriers to trap supernatural creatures. During the day, he deals with a sweet tooth and a grumpy grandfather. His 16-year-old neighbor, Tokine Yukimura, is also a kekkaishi and a childhood friend. Their families are in a long-standing rivalry over which lineage is the authentic master of the kekkaishi tradition.