HIPPO HOUSE NARIMASU 12 Living room renovation project was completed last year giving this newer building an even larger living space for tenants to enjoy. The stylish furnishings add to the overall character and comfort for tenants to enjoy. Narimasu 12 has been popular among students studying near Ikebukuro, Takadanobaba and the Shinjuku area with its great train access ~ Fukutoshin, Yurakucho, lines.