Natalya.

She will be available only for the throuple route. You can start friendship with her early on. with benefits, if you so choose. But a relationship choice will only be available if you enter relatiosnhip with another LI first.

She is between the ages oif 38 and 42. I haven't worked out her whole back story yet, that's why I am uncertain at this point.

She is already interested in you, but mostly out of curiosity as to why you are so distant towards everyone. There is a bit of sexual interest from her as well, but mostly just friendly attempts to engage you in conversation.