"Kagaku na Yatsura" is a Japanese manga series created by Kōsuke Fujishima. It was serialized in Kodansha's Afternoon magazine from 1989 to 2002. The story follows Ataru Moroboshi, a high school student who is often unlucky in love and life, and his interactions with various alien characters, particularly Lum, a beautiful alien girl who can fly and generates electricity. The series blends elements of science fiction and romantic comedy, featuring a diverse cast of characters and humorous situations. It has been adapted into an anime television series and several films, contributing to its popularity and influence in the shōnen genre.