Unlike performers who cycle rapidly through multiple production houses as freelance or "kikaku" (project-based) models, Ishihara established her brand around dedicated studio identity. Her primary affiliation with the studio Attackers heavily influenced her performance style. Attackers is widely known in the Japanese adult market for its specific focus on heavy melodrama, complex scenarios, and high-intensity dramatic acting.
However, her first stint was incredibly brief. Just three months after her debut, in August 2008, Ishihara shocked fans and the industry by announcing her retirement on her official blog. The reasons for this sudden departure remain a mystery. Some speculate the intense pressure was too much—in just three months, she had already filmed six works, a demanding pace for a newcomer. Following her retirement, she disappeared from the public eye, reportedly moving far away, working as an office secretary, and even contemplating marriage and a life as a full-time housewife. Rina Ishihara