I really think that an option to play as a woman would be valuable. Just take a peak at this thread, I do wonder how many ladies play gender CSG to see that many women will be turned off of reading your work if you lock it, and even some men will be less likely to read it.
Where it comes to writing a woman’s perspective, well, first I’d say that as long as you don’t rely on stereotypes, it’s not something you need to feel unable to do; women aren’t aliens. Just make sure to write a woman as a particular character, rather than an embodiment of womankind.
That said, I’d secondly like to note that writing an interactive story makes this a whole lot easier for you. Someone playing a woman can decide what being a woman means to their character.
Now, being as you have a Chinese cultural theme, you would have to consider whether you are writing with the kind of patriarchal society which China historically has had, or whether your setting is more egalitarian. The former would involve more work at differentiating the playthroughs, but could be worthwhile if you want to stick closer to the historical model. (And even with a patriarchal society, there were women who achieved great things in Chinese history.) Another alternative could be something like Choice of Broadsides, where the whole culture flips with the player character. This could also involve more coding.