Tbf, after seeing the whole scene with Hiroko at the meeting with the other managers, I can understand why she doesn’t want to be out about this. I mean despite her being the most valuable worker and core of her team, those old dudes were still trying to encourage her to quit, get married, and have kids bc she’s a woman, with like only one of them disagreeing. If they already subconsciously discriminate against her now, it’d probably get worst in the future if they knew she was a Lesbian, the work field is brutal and sometimes it things like that that could be the start for them to actively replace her.