Ore no Imouto ga Konna ni Kawaii Wake ga Nai, often abbreviated as Oreimo, is a popular anime series that follows the story of Kyousuke Kousaka and his relationship with his younger sister, Kirino. The series explores themes of sibling relationships, otaku culture, and personal growth. It blends comedy and drama to depict the complexities of family dynamics and the challenges of understanding one another.