Mug De Voyage Uryu-no-maru

【あまりゅうのまる】Dragon crest / Dragons have a hierarchy, and the highest-ranking dragon is depicted as a pattern, and the lowest-ranking dragon, called 'rain dragon', is also depicted. The rain dragon is said to have horns in 500 years and wings in 5000 years, so it is thought to be a symbol of ascending to heaven. The dragon is considered to be an animal representing the emperor and is liked by the samurai class, and is thought to have been made into a family crest due to its auspicious significance. (Takazawa et al., 'Dictionary of Family Crests')