This conversation piqued my interest, I'd pay to see the MC try to defeat a boss with enormous sexual powers between his legs, in order to win Mia back.
He could easily snatch her from the clutches of a group of ogres. It's a joke, he'd get beaten up haha. The lizard would be better competition, that first one who played with Mia. A group of ogres would be dangerous for Darren, but I think he'd die trying.
But he might be able to compete with Gordok or Kold, which would be a little easier for him.
Finally, seeing him willing to put the group in danger to win back the heart of his little witch would be a good plot for the game. We can imagine endless good and bad situations happening to Mia, Darren, and the others in the group.
The battles, the sex scenes, the mystery, the danger—we're going to have a lot of fun here!
I have an idea with Mia getting a little stronger, yes, she already has a Rank A, but why not make her even stronger?
She's a good witch, setting aside her coldness, but she could change over time in the dungeon and because of the events that might happen, especially if Darren... In great danger, Mia might be capable of anything to protect him, just as she tries to do for the witch and wizard community, since those two things are the only things that matter to her in that world.
It's always good to have different options besides simply defeating or spilling the blood of each stage's bosses to obtain their powers. And continuing with "Stronger Mia," how could she acquire these simple powers? Some monsters could transmit them to her through sex. The same would apply to the rest of the group, if that were possible. And to obtain these powers, the girls and boys would have to endure some good, wild sex, and whoever faints or gets tired first loses, just like Gordok does with the girls he picks up.
My style is a bit peculiar and funny, but if anyone here laughs, my long text was worth it.