Oh wow, this thread really went off the rails. I don't know if it would have helped if I'd found it during Ch1, but I think it might help to understand a bit about how Japan treats trans-ness.
Transpeople in Japan can only change their legal sex after they'd had bottom surgery, and cultural thinking follows suit. Even transwomen who are obviously taking hormones are legally and culturally treated as men if they haven't or aren't planning on getting bottom surgery (and the same is true for transmen). Even though this chapter has now made it explicitly clear that Hikaru thinks about herself the same way we understand transwomen do in the west, she's most likely going to keep considering herself a man in the text.
Personally, I'm also treating this as a trans story, even if it's comedic and not taking more than a few panels to explore concepts like dysphoria. Hopefully this'll help others understand why Hikaru is likely going to keep thinking "...though I'm a man" despite being very much a transwoman as it goes on. I'd also wager that this is why the author called it "not a yuri story" as was mentioned back on page 4; Hikaru is being considered a man, at least for now.