Nagata Ruriko

 (永田ルリ子) is a former Japanese idol and a former member of Onyanko Club.

She joined Onyanko Club on May 17, 1985, and graduated on September 20, 1987, where the group disbanded.

She retired from entertainment with the disbandment.

Profile

 * Member Number: 18

Trivia

 * Ruriko was very close with many members of the group, but her best friends were Nitta Eri and Nakajima Miharu.
 * She was the only active Onyanko Club member who was a legal adult (20 years old) at the time of its disbandment.
 * Both staff members and Onyanko Club members have stated that Ruriko was very good at memorizing and even improving on choreography routines, and spent a lot of effort helping members who were struggling with memorization.
 * There were rumors that Ruriko wanted to stay in the entertainment world after Onyanko Club broke up, but the plans fell through. Her former friend Nitta confirmed this rumor when she mentioned she regretted failing to help her friend find a talent contract.
 * She got married in 1988.