Her debut was highly successful, reportedly becoming one of the highest-selling releases of the year. She later transferred to the label Soft On Demand (SOD)
Given the context, it seems you're discussing the transition or involvement of certain individuals from AKB48, specifically Nakanishi Rina and Yamaguchi Riko, in adult entertainment, marked by their AV debut. dv1184 akb48 nakanishi rina av debut yamaguchi riko verified
: The tragedy deepened when her younger sister, using the name Riku Yamaguchi, also entered the industry. The sisters eventually performed together in a highly controversial production before retiring. The Tragic "Why" Her debut was highly successful, reportedly becoming one