Olympos

Olympos (オリンポス, Olympus) is a manga by Aki. It ran in the Zero-Sum WARD magazine from November 16, 2007 to July 16, 2009, and is complete in two volumes. Yen Press has released it in English as a single omnibus volume.

Plot
From on high, the gods make sport of the mortals who toil below them. None know the cruelty of these beings better than Ganymede, a beautiful prince who was torn away from his family by the gods' divine hands. Granted immortality, Ganymede now whiles away his days in an inescapable miniature garden for the amusement of the gods, particularly Apollo. But the gods themselves are no strangers to the boredom of eternal life, and as Ganymede quickly discovers, they will do anything to keep themselves entertained, both at his expense and at one another's...