I actually like that Mizuki really is acting like a girl who was suddenly told he was a guy. He didn't thought of doing 'girl things' as a chore or faking it, because he was raised as a girl and really thought he was a girl for most of his life. It was natural for him and in fact he had to get used to being a boy, like getting comfortable with touching male as with the first chapter, is what makes his characterization so nice. He wasn't just a boy who was dressed up as a girl for most of his life, but he was really raised as a girl and only recently had to be used to being a boy
I actually like that Mizuki really is acting like a girl who was suddenly told he was a guy. He didn't thought of doing 'girl things' as a chore or faking it, because he was raised as a girl and really thought he was a girl for most of his life. It was natural for him and in fact he had to get used to being a boy, like getting comfortable with touching male as with the first chapter, is what makes his characterization so nice. He wasn't just a boy who was dressed up as a girl for most of his life, but he was really raised as a girl and only recently had to be used to being a boy