I just wikied it, and its nothing like Dog Days, you have nothing to worry about. Leon and Milly have a sisterly friendship past, nothing more. anyone says theres more behind their friendship is just one of those people who want every anime to have yuri in it.
I dont want the day that i have to hope that the girl in a anime i like is straight or not. but Milly is definaly there on the straight train.
I honestly dont see any hints in Dog days so far that leads to anything even remotely to yuri. please tell me what im missing. because i ho9nestly dont see it.