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AV Debut (2010): In August 2010, she debuted as an adult actress under the name Riko Yamaguchi with the label Alice Japan. This move was groundbreaking as she was the first former AKB48 member to enter the industry.

Understanding the Terms

• Cultural Shock: Her debut caused significant controversy among AKB48 fans and led the group's management to distance themselves from her, often blurring her face in older archival footage.

  Family Involvement: In a rare and controversial move, her younger sister, Nakanishi Marika, also entered the industry under the name Yamaguchi Riku.