How do you define a culture? Culture can be reflected in both materials (lifestyle, fashion, aesthetic tastes) and spirituals (customary beliefs, future expectations, value systems). It affects how people behave and interact with each other in the world. As every change in technology brings new culture, the metaverse can usher in a new form of culture (Metaculture), which can affect our real lives. Metaculture is also a crucial part of metaverse applications as different cultures (community-driven/ corporate-driven) can attract different user groups. This series of articles on the metaverse culture aims to draw a profile of Metaculture and forecast the implication of this new wave.