Risa Koizumi is a fictional character from the manga and anime series Lovely Complex, created by Aya Nakahara. She is known for her tall stature, which makes her feel self-conscious, especially in a society that often values shorter girls. Risa is a high school student with a vibrant personality and a strong sense of humor. Throughout the series, Risa navigates her feelings for Otani, a boy who is shorter than her. Their comedic and romantic interactions highlight themes of self-acceptance and the challenges of love. Risa's character development showcases her growth as she learns to embrace her uniqueness.