Iwaya Sumire is a fictional character from the popular Japanese manga and anime series Kaguya-sama: Love Is War. She is known for her strong personality and intelligence, often serving as a voice of reason among her peers. Sumire is a member of the student council and plays a significant role in the series' comedic and romantic elements. In the story, Iwaya Sumire is depicted as a determined and ambitious individual, striving for success in both academics and personal relationships. Her interactions with other characters, including Kaguya Shinomiya and Miyuki Shirogane, highlight her growth and the challenges she faces in navigating love and friendship.