This paper discusses the heterogeneity illustrated in “The Bridegroom Was a Dog (Inumukoiri)”(1992)by Yoko Tawada, by connecting with her viewpoint on cotemporary Japanese society. It is pointed out that the central characters, Mitsuko and Taro are described as being liberated from gender norms and it is also confirmed that such liberation will break down the marriage and family system. Moreover, the social taboo of sexual minorities like Mitsuko and Taro is rezealed.
Focusing on the fact that the people living in Tama area which developed during the high economic growth period of Japan, were considered to be typical examples or norms, the author of this novel expresses her discomfort with such a society by describing people who are not bound by such norms. The heterogeneity in this novel discussed in preceding studies may be considered to have been established by the non-conscious norms of its readers.