After death, another gate opens for victims of unspeakable crimes, terrible accidents, and hellish lives. The Gate of Grudges is guarded by a lady named Izuko, who offers those that enter three options: to accept their death and ascend to Heaven, to remain on Earth as a ghost, or to haunt and kill someone. While the last option is appealing to most, the moral implications of their actions will cost them an eternity of damnation in Hell. As each victim has 12 days to weigh their options, Izuko is there to guide them to a decision they will not regret. [Written by MAL Rewrite]

Skyhigh was released in Italian by Edizioni Star Comics from September 10, 2003 to October 10, 2003; and in Spanish by Ediciones Glénat. The series was adapted into a live-action Japanese TV series that aired on TV Asahi for two seasons from 2003 to 2004. The manga was also adapted into a live-action Japanese film that premiered on November 8, 2003.