A Readers block or community, of a newspaper or magazine published in the modern period of Korea, can show us what kind of modern knowledge and emotion were spreading through the public. Analyzed in this article is how readers of the 『Children』 magazine thought and acted at the time. Their actions are catalogued, and digitalized information concerning certain aspects of those actions has been rendered into a database, so that how the boys and girls embraced or sympathized with modern (and nationalistic) information and sentiment, and how they changed during their growth, could be determined.In the 1920s, the 『Children』 magazine had a readers block that had 100,000 readers who were very loyal to the magazine and not to mention active. Naturally, in time they also formed a firm and independent ‘readers community’ of their own. Readers formed a collective consciousness which also had nationalistic layers in it through their reading of the 『Children』 magazine. And they also learned rules which would have to be abided by, by themselves as modern individuals. In such regard, the ‘goal’ [of enlightenment] laid out by Bang Jeong-hwan and others on the 『Children』 magazine’s editorial board was indeed accomplished. But at the same time, the readers, boys and girls, reconfigured their own network and established an entirely new web of human contacts, which stood independently from their ‘teachers’ and ultimately diverged from the original intentions of the members of the editorial board.For the children of a colonized country, who were deprived of educational opportunities and social communication methods, ‘Children literature’ was a new challenge that hugely drew their interest and also a motive for their own generation. The boom of children literature in the 1920s and ‘30s was a social phenomenon that marked the children’s forming their own identity.