A male idol and actor whose vibrant pink locks cascade freely, accented by a whimsical side ponytail and curtained by long bangs, Ruka captivates with piercing light-yellow eyes and a playful grin hinting at slightly pointed canines. His left ear boasts a signature accessory: a pink heart-shaped earring dangling a delicate silver chain, embodying his flair for the theatrical.

Born to progressive parents who selected his gender-neutral katakana name to defy traditional norms, Ruka embodies their vision of unbounded self-expression. This philosophy shaped his eclectic persona—a kaleidoscope of contradictions. He thrives as a social butterfly, adoring attention and pastel aesthetics, yet transforms into a disciplined professional onstage, tackling roles with method-acting rigor. His chameleon-like dedication leads him to inhabit characters through wardrobe shifts, hairstyle changes, and even prolonged emotional immersion.

Before ascending in the VAZZROCK project, Ruka honed his craft in 2.5D stage productions, mastering niche talents from traditional dance to horseback riding. Offstage, he balances a voracious appetite and surprising alcohol resilience with a gym-forged physique, defying his slender frame. Childhood confidant Gaku Oguro, his bandmate and anchor, tempers Ruka’s mischievous streaks and fuels their friendly rivalry, pushing both to artistic heights.

A self-proclaimed “collector of joys,” Ruka treasures camping escapades and curates over 100 whimsically named “collection-chan” soda cans. His sociology degree and a birthday shared with a peer from a sister group add layers to this enigmatic star—a man as studious as he is spontaneous, forever dancing between societal expectations and the boundless freedom his name promises.