A traditional Japanese tea set with the theme of white egrets, usually depicting the scene of white egrets fishing by the water's edge. It embodies the aesthetics of Japanese ink painting and also contains a longing for natural harmony and peaceful living. Designs are often concise and full of artistic conception, outlining the elegant posture of herons with a few strokes, especially the sharp brushstrokes on the head, leaving a deep impression on people. Not only used in daily tea ceremonies, but also often collected and appreciated as art. The creation can be traced back to the Muromachi period, around the 15th to 16th centuries. At that time, artists used delicate brushstrokes and ink colors to create many works with nature as the theme.

Egret is a medium-sized wading bird belonging to the family Egret in the order Characiformes. There are 13 species of birds in the genus Egret, among which the Big, Medium, Small Egret, and Snow Egret are all white in body feathers, commonly known as Egrets, and have a medium body size. Distributed in the Yangtze River Basin and other areas of China, as well as in Africa, central and southern Europe, West Asia, Central Asia, East Asia, Southeast Asia, Oceania and other regions. They inhabit lakes, ponds, estuaries, and other water bodies in low altitude areas, often gathering in small groups and active in shallow waters or riverbanks. They often forage in the water during the day and fly back to the forest to rest at night. White egrets prey on small fish, shrimp, frogs, mollusks, insects, and also peck at small amounts of plant seeds.