Comet Kun is a fictional mascot character featured in the anime series 'Ore no Imouto ga Konna ni Kawaii Wake ga Nai' (Oreimo). Within the show's universe, Comet Kun is part of a popular magical girl anime that the main character, Kirino Kousaka, is a big fan of. The character is depicted as a cute, anthropomorphic comet with a round body and a star-shaped tail, often serving as a symbol of Kirino's otaku interests and her passion for anime merchandise.