Love when people are annoying as shit about trans people in the comments of a manga with a trans character. why read something if youre just gonna be distespectful about the demographic it portrays? go do something that makes you happy or educate yourself.
trans people are their genders. sex isnt a gender, its a bimodal distribution assigned to people at birth due to physical characteristics. And no, its not always chromosomes since those differ (hence why sex isnt binary but bimodal).
Gender however, is 100% a social construct. Words like boy, girl, man, woman, etc. are all things that are not inherent to our bodies or brains but by the culture around us. Long ago in England, all prepubescent children were called girls, even what we consider boys today. Around the world, different cultures have their own words for different genders.
When people say trans men are men and trans women are women, no one, not a soul is saying that trans men are biologcially the exact same as cis men (males from birth to make it easier) or that trans women are biologically the same as cis women (females from birth). theres no one way to be a woman or a man, physical experiences arent the end all be all for what makes a man a man or what makes a woman a woman. Its reductive and backwards to redice people to their genitals.
What science, sociology, and psychology says is that because gender is socially constructed by our culture, being a man or woman is not ingerently biological.
So yes, a trans man with a woman (trans or not trans) would be a straight relationship. A trans man with another man (trans or not trans) would be a gay relationship.
Also, Claudine was sported as a yuri not because of some objective truth, but because it was created in the 70s. of course people would view this as a yuri, but officially its a shojo manga. Even in the manga itself, those who knew Claudine best called him a man, just that his body "wasnt quite right". But as years go by, society and language progresses. The way we look at things, at people changes when we develop proper language and terminology. As people are becoming less and less afraid to be out as trans, more information is readily available.
Plus as an added note to the story of Claudine!, calling it a yuri is actually disrespectful to lesbians and bisexual women. Because it implies that there are lesbians who just want to be men. Im pretty sure the whole point of being a lesbian is that youre not a man but a woman who is attracted to other women.
anyway, i stated my piece on this issue. As for this manga, I enjoy it a lot! I think its very fun to see a story of a trans boy and his relationship to clothing. I also think its cool to see a story that isnt 100% about the character just being trans, but his interests and goals and friendships. I love the dynamic and friendship between Ryou and Jin a lot!!!