For about half a century, a research upsurge about Dazaiosamu and his works has emerged, with syayo as the most popular one. While strangely enough, studies on jyoseito were rare. In this work, Dazai set up his literary style of female monologue, in the first person point of view. After the World War II, syayo and hihutokokoro were successively accomplished.By reading up his work, it is not hard for us to notice the recurrence of the word ”Kawaii”. So the purpose of this essay is to solve the problem about what kind of kawaii represented in the Dazai Culture, as well as how and why there are these associations between Dazai Culture and Kawaii.