About: With a desire so insatiable that even every man in his empire couldn't quell it, Gilgamesh forged sacred artifacts that he would be able to use to pleasure himself as needed. While these relics of his were a success at first, he grew bored of them rather quickly, causing him to once again seek out a way to grant his more lustful wishes. It's no wonder his latest travels brought him to the Haremverse...
The mythological Gilgamesh is actually a human [partly] but in GH, he is fully a god instead. He looks for more pleasurable things to satisfy himself rather than immortality.