Ryunosuke Tsunashi is a charming and mature member of the popular idol group TRIGGER in the anime series Idolish7. Known for his deep, soothing voice and gentlemanly demeanor, Ryunosuke brings a calm and composed presence to the group. Despite his tough exterior, he is caring and deeply values his friendships. His role in the series includes being a mentor and older brother figure to the younger members, often providing guidance and support. Ryunosuke's personal struggles and growth are explored throughout the series, highlighting his dedication to his career and friends.