Harashima Ruka

 (原島ルカ) or better known as RUKA is a Japanese idol. She's a member of SAKURA MODE~Sakura Uchuu.

Profile

 * Hobbies: Watching dramas
 * Special Skill: Crafting, pictures, swimming, and bridges
 * Favorite food: Mango
 * Favorite word: Daisuki! (大好き！; I love you!)
 * Favorite artists: ANGERME; especially Sasaki Rikako

Singles

 * MY MODE / Wake Up!