https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_208907/?i3_ref=search&i3_ord=1

果然吃過雞雞就回不去了.......

Base +7, Tsukikoconasdf +6, 梁先生 +6

居然最后是纯爱

Base +5, sn608cc +4

So based from my understanding by looking at the image

Arrogant aristocrat got turned into peasant girl by a wizard who use magic to turned himself into his doppelganger .
Wizard use change the memories of the recently changed peasant girl to fit her origin.
Wizard seduce the peasant girl and have sex.
On ball debut peasant girl attend with the wizard, when unwelcoming talk reaches her the wizard protect the peasant girl who in turn fall in love.
Last image is what i can assumed is a happy ending for the peasant girl as she is pregnant with the wizard child and happy about it (despite the fact the act of changing the peasant girl memories)
and i don't see the ring on her hand as far as i can see, so i go with mistress/concubine maybe?

Base +4, Quasi-Evil_Overlord +6, dsgturuhgjhgk +6, myoxy +10, xaelath +6, rext11 +6, Constipated_Guard +6

Way better than the original story where the MC gets turned into a peasant girl receives a kiss from wizard then wakes up next day in their new farm house as their new life and home

Base +6, xaelath +6

At least she's happy. Another good one from the author.

Base +5

Waiting for the obligatory "Genderbend the 1%"

Base +44, ROABE +6, Vanilla GB lover +4

不会其实是换身了吧，这魔法使原来是这妹子

Base +6

怎么又是认知改变……和nomu以及柊popura组成洗脑三杰了

Base +8, 神渊之龙 +6, Man in H +3, Jenni33 +2

no they get married. the servant says that the girl and "ruuku-sama" got married and calls the girl "oku-sama". also the doppelganger decides to marry the peasant girl because everyone else trying to get into a relationship with him is only aiming for his wealth and power, unlike the peasant girl, who likes him for who he is (as much as you can say that about someone who's pretending to be who the peasant girl originally was, at any rate)

Base +9, rext11 +6, Vanilla GB lover +4

洗脑三杰也太草了

Base +6