OneManArmy

Yeah, you can just go straight for the Meiya route. You don't have to do anything else. The other endings are mostly the same with the other characters (just the girls switched around and different h-scenes and stuff). Although after doing the 2 Meiya endings, I think you can do the Yuuko ending as well. I believe there is some additional information with that ending. And yeah, Bunny girl does not have a route : (