Idea: Heir of the Underworld

Summary: 
          The daughter of Satan has never stepped out of Hell once. When an Angel comes to talk to her father, Seris is suddenly given a chance to go to the Earth. Jumping on the opportunity, the girl suddenly discovers her strange powers, as well as many reasons to why she should never leave home again. Seeking out the Angel, Adonis, for help, Seris is suddenly betrayed. After escaping from near-death, she finds herself to be stuck in the human world, Earth.

          Befriending two humans, Seris manages to find comfort in the land of mortals. But that doesn't last long. A demon group is after her, wanting to destroy the Heiress of Hell in order to take the throne for themselves. Alongside the hunt being lead by Adonis, the girl hardly gets a chance to rest. Problem is, if she heads home then she will instantly be targeted by the Demons. So, living among humans is the only chance she has for survival. 

          The people of the Under and Higher worlds have been at constant war. The Mortal World  is the only ground where the fights are equal on both sides. If an Angel is killed in the Underworld, they will cease to exist. However, if they are killed on Earth, then their souls are instantly transported to Heaven. And vice versa with the Demons. The creatures are immortal in their homelands, but can be seriously injured. 

          Humans are reincarnated when they die until they reach total perfection, where they are sent to Heaven; or have sinned so much in their lifetimes that they are sent to Hell.  

Characters:

         Name: Seris

         Age: 15

         Physical appearance: Long black hair and reddish brown eyes. Short, but everything else is average. She tends to wear darker colors out of habit (her dad is Satan and all). After discovering her powers, Seris always wears a black leather glove over her right hand so that she isn't able to use them as often. 

         Personality: Shy and quiet. As the story drags on, she gets a little more open and more sarcastic. Is a bit overly paranoid, and hates it when people treat her like a little kid.
         Species: Unknown.

         Name: Wallace Dango

         Age: 16

         Physical appearance: Short brown hair, blue eyes. Tall and lanky. Likes sweatshirts A LOT and will wear them any chance he gets. 

         Personality: Outgoing and funny. Bit of a social butterfly. He isn't scared by much, but gets freaked out whenever he sees something spider related. Loves to tease his younger sister
         Species: Human

         Name: Vicky Dango

         Age: 14

         Physical appearance: Long, curly brown hair. Blue eyes. Tall and a little on the large side. Is always wearing some kind of neon clothing. Even if its just her shoelaces. 

         Personality: A bit of a girly girl, but isn't afraid to get all muddy and loves to go on dangerous adventures. Uses Wallace's fear of spiders against him every chance she gets.
         Species: Human

         Name: Adonis
         Age: Unknown
         Physical appearance: Long platinum blonde hair that he always keeps tied back. Bright blue, almost white, eyes. Tall and really freaking pale.
         Personality: Can seem like a perfect and kind Prince Charming, but is really greedy and self centered. He will manipulate whoever he wants in order to get to whatever goal he has. Has a strong hatred towards anything that is not an Angel.
         Species: Angel

         Name: Delia and Aelia (Demon Sisters)
         Age: Unknown
         Physical appearance: Both have long black hair and chalky grey skin. Bright red eyes and lips, long black nails. Pointed teeth, snake like tongues. Always seem to wear long black dresses with silver spiderweb designs. Only difference between the two is that Delia is taller than her sister by a few centimeters.
         Personality: They like to repeat each other/ finish each other's sentences. The twins love riddles. The twins are very sadistic, and enjoy witnessing and causing any form of torture possible.
         Species: Demon