Rhina stood on a rock surface over looking the homeland she was created and sent forth to destroy heaven and the earth, though most of her land was in shambles. Even with the converted humans their land wasn't growing as fast she'd like so she set aside her energy sucking tendencies for humans that called her in the the mortal realm when she wasn't down in hell trying to help them rebuild. This was set aside to be pregnant so that their might army could rebuild a lot faster if her kind was producing demons for them.
Suddenly she could feel a pull on her from a human summoning circle, it wasn't sophisticated as it did the old natural pull of one. It was before when the dark lord was in existance he would call forth and set the parameters of the subject but this time the pull was for a human that wish to help out the effort to rebuild hell. It was one of the new ways and most succubi that have been called like this enjoyed cause they got a human play thing to enjoy due to their excessive sex drive and constant need for energy. Rhina was no different though back then they'd go to kill the human this time she went up to help him rebuild hell.
Like instinct she slowly went into the portal that formed by her slowly coming out on the other side, it was causing some of the dust from her world to kick into his. Her eyes emerged as she could see only the man summoner and nobody else, she concluded that he did this himself and was the only one that wanted her to himself. Hell she didn't mind that she liked it when humans fought over her, it made the humans seem desperate or greedy which was a trait that eventually they'd come to hell. However this summoner seemed different like even if she had the urge to drain him she couldn't like he belonged already to hell, oh well it didn't matter she wouldn't do it cause she had an oath to hell to rebuild it.