On, a boy from New York, discovers he is a descendant of a tengu. According to their traditions, after reaching 14 he must spend a year of seclusion in Japan with his older brother, Motoi Izuna. Tengu aren't particularly powerful; they live a simple life working in the fields and enjoy cooking, which only disappoints On. His interest only gets caught after discovering his brother has wings! Will he also develop tengu powers?!

(Source: Kodansha, translated)