Holy crap it's a divine miracle, a new chapter (part) has come out.
I know she's not a mother because she doesn't get pregnant but Oh Momma!
Anyhow. I don't recall much since I read what I could find of the novel translation a long long time ago. But even with or without reading the source, just by general pattern recognition for this genre, all I can think of is New Harem Member Get.
I mean, she's a first class adventurer and a first class SEEEGGGGSSS, and since the MC is very serious about both Adventuring and SEEEGGGSSSS, it only makes sense that he would want to have her in his party for Adventuring and UOOOOOH, TAKESHIIIIIIIIII ORE WA SEEEEEEEEEEGGGGGSSSS
I know there isn't a harem tag (yet), but with this kind of development, you really can't help but expect that.