So I read this story and I liked it at first, but then I thought about how the main character kept calling the heroine "he/him" even though he supposedly understood this isn't what she wanted, so now I feel like he only appeared to understand her, but never actually did. Poor Renri...
So to me Renri never wanted to be seen as a man, she just wanted to be accepted for who she is. Everyone kept telling her that as a woman she has to act more feminine, but to her this meant not being herself. Then on the other side you have the people who think that just because she likes boyish things, she can't be considered a woman. Which is also horrible!
Azuru kept assuming she wants to be seen as a man without ever asking her. He even assumed that she must like women. And then when he says he sees her as a man, she looks so disappointed in him and later on tells him not to force her into being a woman OR a man and that she just wants to be herself. But even then he kept calling her "kare" in his head. Later on he says he no longer cares whether she is a man or a woman and that he loves her for who she is, but then he still kept calling her "kare" in his head! So he only appeared to understand her?!
From her reactions to things and from what we see in her past I think she just wanted to be accepted as a tomboyish woman - not forced to change herself in order to be more "girly", but also not denied being a woman just because she is a big tomboy. To me that's what her "don't force me into either one" meant.
Also Azuru was ashamed of being gay, but couldn't accept that he fell for a woman?! To the point he kept trying to convince himself she is a man?! WTH?!
And why was the brother so evil for no reason, seriously.
I think Azuru should have talked to Renri more and listened to her more, and maybe it would have been nice if the story switched to her perspective at some pont. In the end I think Renri's big sister is the one who understood her best. "To me she is still my adorable little sister. I couldn't possibly reject her".