
i’m pretty sure the only reason he’d want to stay as a women is so that society won’t judge their relationship as much but shion has a million more reasons why he wants to go back to being a man as that’s his real self, the one who’s been rui’s best friend and rival the entire time
it’s pretty self-devaluing if you throw away your whole personal identity just so you’ll conform more into society

He's lived most of his life as a man and he was drugged against his will. We haven't really seen him have a negative viewpoint of being a man. Since he's been a woman he's been assaulted, kidnapped, and sexualized. From his viewpoint the only positive experience he's had as a woman was being able to openly be in a relationship with Rui. Also, it's not like he wanted to be a woman in the first place so it makes sense why he would ultimately whose to be a man over being a woman.
i though he wnated to stay a woman??? i get it, it might be difficult to explain but he knows that he won't be treated with love if they stay as a male-male couple, and i'm sorry for them but as long as they're happy