In a planet called earth the three faction Devils, Angels, and Fallen Angels have been on a war with each other for who knows how long all three races have lost many lives but they still kept fighting each other. The angels have God as leader, the fallen angels have Azazel and the devils have Lucifer each of the leader just being around them makes you feel fear if you're facing them or admiration if their your ally. The thing that no one knew was Lucifer has a younger sister name Lilith that has the same amount of magic as the leaders but she hated pointless fighting that's why no one knew of her she never participated in the war. Everyone thought Lucifer has the strongest magic in the devil race but they were gravely mistaken it was Lilith with the most strongest and rarest magic her lighting which was a color of black with some purple inside was strong enough to pierce through the scales of dragons. Since his sister denied to help the devil faction in the war Lucifer couldn't stand his little sister saying she was a disgrace to their race but she didn't care she just wanted the war to finish she couldn't stand seeing pointless death just for a war that most forgot how the war started. The only two devils that knew of Lilith are Sylvia since they were best friends and her daughter Grayfia they also knew that Lilith can easily become a maou but if she did showed she was as strong as her brother than she will be forced to join the war since the other factions will know that if they did killed Lucifer than his sister can become next maou and continue the war which is why she preferred no knew of her existence. Lilith was not only a ultime class devil with a rare magic but she is also the inheritor of the Elucidator a demonic sword made to fight the holy sword Excalibur so in her free time which is when Sylvia is not there she is sneaking into the human world learning different styles of swordsmanship just in case her magic was sealed she wants to be able to defend herself. But the more time passed the more she realized that the war will not end so she has called Sylvia so they can think of a way to end it but no matter what plan they thought of they found nothing but flaws in their plans so she has asked her best friend to help her find Great Red hoping he can help them end the war. When they did manage to find him after six months of looking for him he denied them saying he has no intention of stopping something they started on their own devastated by the answer Lilith can only think of one way for her to not hear of the war and see more of the factions killing each other which is to run away. So she asked Great Red if he can at least send her to a different universe similar to their own when he said he could in one week since he was going to be close to a universe where a planet has magic she has made up her mind to leave. The only problem was that even though Sylvia and her have been best friend for more than 300 years Sylvia didn't want to go with her saying that even though she also doesn't likes the war she can't abandon it either that she wants to remain loyal to Lucifer no matter what. Since she didn't want to fight with her best friend knowing how dedicated she is to her job she had no choice but to leave her but before she left Grayfia made a promise to someone she admired and respected that if she ever had a child than she will help raise it to be a powerful devil. Since she isn't someone used to that kind of talk Lilith couldn't do anything but stare wide eyed while her face was as red as a tomato but when she composed herself she smiled and thanked her saying if it happens than she expects Grayfia to make her child the most strongest devil ever born while in her mind she doubt it would happen since she had no intention of falling in love. After a week passed Great Red showed up he took her to a planet called Earthland when she first saw how it looked she was happy to know there wasn't a war going on but was also sad since she wouldn't be able to see her best friend and her daughter ever again but decided to not let that put her down so she started to explore her new home not knowing she was going to do the opposite she been trying to avoid which is to join a war and the least she expected when coming into this world was to fall in love with a dragon.
Hope you guys enjoy this chapter have never been good at making stories it's my first time writing a fanfic usually I like to read them. Also I would like to say I don't own Fairy Tail or High School DxD they belong exclusively to Hiro Mashima and Ichiei Ishibumi. If their is anything you like to ask just pm me I'll reply as best as I can if you see any spelling errors or some information that's wrong don't hesitate to tell me I will try to fix them but I don't want to copy the whole story as the original authors I will create my own arcs along the way to make it feel like my own story. Also I know right now it seems boring and didn't describe how they look like but that's because I just wanted to give some information so when I release the new chapters which is going to jump right into the story you won't be confused when I just put names in there without giving information.