I have only been able to talk to her one on one once and did you do love route with her or slave. I figured there was more to it in v0.9 unless I am missing something. I have gone to talk to her everyday for 3 in game weeks and nothing.
´´What do you do after CORRUPTING nia.`` I think that already answered your question. 😁
it literally says you have corrupted nia, then its back to how it was before nothing changes.
slave route