The emergence of Japanese anime in Indonesia is a unique phenomenon considering that there have been many changes in behavior and a special attraction for the youth of this nation. The existence of a community of anime lovers has always been a topic of conversation among other teenagers. The reason is the polemic and the issue that its existence influences imitation behavior for other teenagers. This study aims to find out how the development of adolescent lifestyles towards imitation behavior among the Japan club east Borneo community in Samarinda. This research is a qualitative descriptive research study and the data were obtained through observations of club associations and interviews with several informants. The results of this study indicate that the development of the lifestyle of weaboo adolescents is indeed very developed, a lot of imitative behavior such as cosplay (costum and play) from here is a form of the word imitation. Behavior in this club has another purpose besides the word like or love for anime or Japanese culture. But this also has a positive side, the difference is that they were all able to be united in big events like animfest.