https://www.dlsite.com/books/author/=/author_id/AJ022758
https://book.dmm.co.jp/series/?floor=Abook&series_id=903439
https://www.amazon.co.jp/gp/product/B085G2DL8B

So what's her goal now?

Base +3

this manga already over the end

Base +7, lucaslp5 +6, georgenorthern +4

So... she lets the "boyfriend" has other "partner" then next she can fuck "the husband", training herself to become a slut. lol And since she lets her "boyfriend" fuck other girl, he would be either more acceptable to swing or if he does not want swing he can break with her more easy.

Base +8, georgenorthern +4

I don't even remember who any of these people are. Just fucking end it already.

Base +6, georgenorthern +4, Neisan +6, hakatri01 +11, evaluv3r999 +4