Thanks so much for translating this! Really loving it so far. Sorry to see the extremely negative comments, but unfortunately I'm not surprised. Maybe it's because I'm a gross bisexual trans woman instead of lesbian, but I don't find this setup at all threatening. Like, ladies, is it cisgender predatory behavior to adopt a female name and identity if you don't specifically use the word transgender? Does it only count if you're out to everyone and do this full time and change it on your ID? Cool gender, but did you get permission from your doctor and city hall? Does it only count if you realized this is something you want after long term individual self loathing or dysphoria? Does having something spur this decision like realizing you want a lesbian relationship invalidate it and make someone a Loathsome Autogynephile instead of a True Transexual? Does it make a girl less of a lesbian if she's into someone who has taken a female identity but wasn't born that way? Like can we all please get a grip?
In most of the world, including Japan, there is frequently little to no distinction drawn between someone who adopts a female identity in certain contexts (especially romantically/sexually) and someone who adopts a female identity in the medical/bureaucratic American sense. Even if the word transgender isn't specifically used, this is someone who'd fall under the "girl" umbrella! What she's doing IS transition! Similarly, the gold-star boundary around lesbianism is not universal. The word "lesbian" or its local language equivalent is frequently used as shorthand which includes bisexuals and trans/nonbinary people and other ambiguous but clearly queer forms of attraction.
I don't think this manga is some galaxy-brained queer text. It seems like a romcom that will probably be clumsy or trashy in certain ways. That's okay! Author is having fun with it, and within its local context this would be totally legible as a lesbian (broad shorthand definition) romance. Not everyone has to like it or identify with it, but I simply don't think it's hateful, threatening, predatory, or invalidating to queer identity in any way based on what we've seen so far. I think it's fun to play with gender. Gender and sexual attraction is weird and goofy after all.