The kite is characterized by its rectangular shape with a slightly triangular pointed bottom and no tail. There is a legend that it was devised by Gen'nai Hiraga, a scholar of Dutch studies, based on knowledge he gained in Nagasaki during the mid-Edo period when Okitsugu Tanuma, the lord of the Sagara domain (a senior councilor of the Edo shogunate), was in power. This item was purchased in Sagara and has been stored for a long time.