I'm working to improve the current walkthrough, but gathering all necessary details and images is a slow and boring process, that's why I don't spend much time on it. ^^"
Why Mirel can not pregnant and don't have sex scene. Are event for the scene is still in development or it will never be created. I like to have baby with Mirel because it will the symbol for unite human and elf races.
Mirel will get a sex scene later. I delayed it in the beginning, to focus on other characters, and now the artist who's taking care of her images is taking a break from commissions. That's why her first sex scene takes longer than planned.