Level E is a comic science fiction manga series by Yoshihiro Togashi. The plot follows an alien prince who crash lands on Earth and begins living with a high school student. Along with its short length and more realistic art style, the story of Level E focuses much more heavily on humor than Togashi's more famous shōnen series YuYu Hakusho and Hunter × Hunter.
Level E was originally serialized in the Japanese Shueisha magazine Weekly Shōnen Jump from 1995 to 1997 for a total of 16 chapters. These chapters have since been collected into three volumes, as well as two magazine-style books. An anime adaptation of Level E was produced by Studio Pierrot and David Production and aired on TV Tokyo in early 2011.