There are humans and some sort of altered humans. The humans are slaves to the others, who have taken control of the world, after the air had become un-breathable. (they have to wear a breathing device to go outside) The main character gets taken in by someone who turns out to be their sibling (yes, it is incestuous).. The main character lived his whole life in isolation (basically a zoo) and knows almost nothing about the world. He really likes strawberries (which were supposed to be toxic for regular humans). There's this animal (A cat, I think) that eventually is revealed to be shape-shifter) and the sibling that takes him from the human zoo place has long hair and cross-dresses.
Does anyone have any idea what comic I am talking about?