Nina

* has sucubus powers; can release pheromones to make people fall in love with her, needs to have sexual intercourse or long kissing sessions in order to survive/not starve to death. 

* instead of sucking their life force to survive she lives on their 'energy levels' sucking out all their energy in the end. This is not life treatening and will be restored by the 'victem(s)' after some an good night/good few nights sleep.

* has an very pure, incredibly sweet and very loving/caring personality. Making her 'not able' to mentally do wat is 'needed' in order to survive unless she has feelings for that person herself or if someone knowingly agrees to it on their own free will without her using her powers. Which most naturally don't agree to.

* when her body is about to "shut down" from starving to much/for to long her mind fades out unconcious but her body doesnt. As the instinct to survive takes over and 'does wat needs to be done' in order to survive. Using her pheromones on a random person that she senses still has a lot of energy left and seduces them to do 'the deed' in order to take their energy to survive. (She never remembers any of it herself and thinks thay she just just fell asleep at some point) 

* is very sad and depressed as she hates her powers and herself for needing it in order to survive. Making her desperatly searching at an regular for someone to truly love. 

* Favorite sweet snack: Mochi's