Ai Astin is a fictional character from the anime and manga series Kaguya-sama: Love Is War. She is known for her charming personality and her role as a student at Shuchiin Academy, where much of the story takes place. In the series, Ai is depicted as a talented and intelligent individual, often involved in the romantic battles between Kaguya Shinomiya and Miyuki Shirogane. Her character adds depth to the narrative, showcasing themes of love, rivalry, and friendship among high school students.