The Japanese student movement that arose in the 1960s was led by the new left thought, but violent incidents occurred one after another after 1970, resulting in the decline of this student movement. The East Asia Anti-Japan Armed Front carried out terror campaigns in the first half of the 1970s and was known as the perpetrator of the Mitsubishi Heavy Industries bombing. Why did this group use a means of terrorism? As the literature has scarcely examined this group in great depth, this paper aims to analyze their actions and thought from the historical context and political theory. The importance of including this group in academic studies is that the members symbolized the thought of the Japanese new left after "the paradigm shift in 1970" as well as the sense of guilt that Japanese are currently facing even today.