I can kind of see why people feel like Hiroko's reluctance to accept Ayaka's feeling was kind of drawn out too long, but personally, I think it was actually a bit too short. We have to remember that Hiroko's had to carry this world view for so long that it's practically ingrained into her habits, which I found very realistic. This chapter went more in depth on how her experience of having to protect her department during shaky times shaped her leadership style. From my observations, her determination to do everything to ensure the security of her position is out of a protective stance, not only to -in her mind- make-up for the sacrifice of her senpai, but also so her employees will not have to suffer through her early corporate experience. I find it very interesting how her mindset contrasts against Ayaka, who is young and new to the corporate environment. Ayaka's boldness is what shakes Hiroko's world, bringing in a new perspective, preventing Hiroko from continuing her spiral down (losing herself to her kindness and guilt).
As someone who also suffers in a similar way to Hiroko, it truly is hard to escape the mental cage. Ayaka's persistence in helping Hiroko see the world in a different way essentially forces the door open. Yes, Hiroko's friends are supportive, but we can see that they are not as direct and forceful as Ayaka, which is why she is successful in slowly breaking down the walls Hiroko built around herself. I think this manga so far decently portrays some of the realities of the corporate world. Ayaka's boldness and optimism stems from her innocence while Hiroko's hesitance stems from the hardships she had to weather through, faced with the truth that in the past, LGBTQ+ was looked with disdain while in modern times it is, frustratingly and unfortunately, incorporated in businesses as a form of "modernization".
Anyways, this is a long ramble, but I think this manga is very beautiful. Thank you author for bringing light to these topics.