I am a little bit afraid the elf might end up doing it with the father or mother at some point...
Seeing the author's pixiv, I am REALLY concerned it will not be a "fluffy yuri story about an isekaid former s3x worker not ashamed of her past finding a partner in another world and exploring other things she wants to do because now she can" instead of a "well she'll cheat because in her culture monogamy is not a big deal or whatever. look! she was a lady of the night! she became desensitized to people's feelings" h3ntai since the artist's hand is probably ITCHING to draw a d1ck.
I would love it if the sexuality of the female character was just another trait about her instead of an excuse to portray her as promiscuous as if bi people can't have a serious monogamous relationship just because they are attracted to more than one gender.
Anyways, looking forward to seeing the human girl giving in [evil laugh]