That was a ending... And, sure I can see Hime being straight or bi and being with that dude. Sure, she didn't end up with Akira, but at least they are still friends and that's important, I like their friendship. What I don't like is how the ending didn't really care that much for Akira.
Like, what's her life like now? She has a job, is she friends with her co workers? Do the clients like her? Is she being a cool senpai for a new worker there or does she has a cool senpai to help her? Also, how's her personal life? Is she and her father getting along? Is she doing HRT? Does she wants to do HRT? Is she dating/interested in someone? We don't know, and that's a shame because, she's supposed to be the central character of this story.
What we get is her, accepting being a side character in Hime's life.