|Japanese name:||新開 誠士|
Height: 158 cm, Weight: 46kg
She is the latest idol-singer that is being produced by LME and is about the same age as Kyoko. She is introduced in chapter 8 when she tells Kyoko [who has become the new Love-Me trainee] to come with her to a movie production. Ruriko is very bratty and spoiled and uses Kyoko like Sho did by making Kyoko believe that is a very fragile and sick person. But when Kyoko discovers what she's been doing Kyoko decides to take revenge on her by trying to steal Ruriko's role in the movie.