This work aims to deepen the construction of identity of the Korean-argentinian through the "koreanity" and "koreanism". Therefore, we will analyze the short story collection La peonia y su sombra (2002) in search of evidence that discover the difficult definition of the "koreanism", or the practice of Korean culture, in which the language is included. The "koreanity" is a feature based on physical traits, while the "koreanism" is defined by the use of the language and the culture. While the "koreanity" is an exogenous factor, and it is well defined, the "koreanism" is defined through cultural impressions that are more difficult to distinguish. To do this we will use the Argentine native vision to find the "koreanism" and, if necessary, will exhibit different forms of subsistence of the "koreanism" in Argentina.