is a former member of AOP. Nichknames are Sakurana, Ricchan and Rittamu. She joined the group in September 2012 and left March 31, 2017. After graduation from high school in 2015, he worked under the name of Risa Matsuki. He belongs to AOP until retirement of the entertainment world on September 30, 2017. ** Note ** All her profile has been remove from entertainment world.