This study problematizes the youth‘s politico-cultural process of identification as becoming in the context of candle demonstration in Seoul, 2008. We examine their ethical subjectivity, communicative subjectivity and political subjectivity based on our analysis of depth interviews of teenage activists in the candle demonstrations. It is suggested that instead of naming the teens as the historical consequence of so-called 386 generation, or social product in the neo-liberal economic and educational conditions, we need to understand the complexities and dynamics of the youth’s practice of identity politics: subjective pain and anxiety in daily life, creation and sharing of pleasure and fun of peer group comunication are mixed into the pursuit of justice in their social activation of generation/gender politics.