For those that don't know, to say that Kaine is intersex means that she doesn't fit into the biological definition of either male or female. Although it isn't explained anywhere within the game, supplementary materials imply that Kaine has male genitalia despite being biologically female in every other way. It's also heavily implied that she was severely bullied while growing up for this, and it ends up being a major part of her character arc and the growth she goes through during the course of the game. With all of that in mind, it's also rather strange because it is by no means easy to get this achievement, adding a level of aggressiveness that makes it even worse somehow.
