Olympos by Aki ran in Comic Zero-Sum magazine in 2007. It has been published in North America by Yen Press.
Synopsis from Publisher: 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…
While I thought the premise of the story was interesting enough to delve into, I found the plot rather boring. Nice artwork was my consolation prize.