This is my first time asking for help and I don't have a good memory so I'll try to explain things as much as I can remember so please bear with me.
This hentai manga is like a POV manga where we are the main character and it starts with us seeing this scientist lady (who has dark skin) and (black hair) and she has a machine which allows you to create your ideal girl into a simulation but something goes wrong then the place catches on fire killing both the main character and the lady. The next scene the main character wakes up in a cave and starts to get chased by monsters but the scientist lady who is now a (cat girl wearing egyptian clothing) and I think she had (dark blue hair) saves him and pulls him out of the cave, after she saves him she takes him to a mixed bathhouse in which she then changes into a (red bikini) and after being in the water for a while I'm pretty sure she removes a curse the main character had on his arms and she starts crying saying she wasn't meant to be created, then the main character comforts her. The next scene they both wake up in the same bed and the lady gets embarrassed and gets out of bed and says she's gonna prepare breakfast, the next scene the lady is in the kitchen preparing food which then the main character walks behind her and hugs her and after that they have passionate sex on the kitchen counter and the only thing I remember them saying while having passionate sex was the lady screaming “Don't let this be a dream” “If it's a dream I don't want to wake up” and that's where it ends.
Sorry that this is a bunch of text and I'm sorry if the explanation isn't all that good but I tried and if you know the manga I'm talking about I'd appreciate you giving the name of the manga or the artist's name I've been searching many different ways but haven't found anything. Either way thank you for your time.