Okay, so this is just a manga idea I have, and I thank you in advance for your opinions.

Title: Holy Hell

It's about an Office Lady and a demon. The main character is the Demon of course.

The world it takes place in is knowledgeable of demons and angels and people live there lives in fear of the ever lasting war that takes place between the two races. One day during summer, the OL, Miyu, is leaving work and is attacked by a few lower level demons. The main character demon. (No name for him yet.) Steps in a stops the demons from harming Miyu and then marks her to keep her safe from any demons before him, the main demons who cause issues are the lowest level. Not even a day later, when she is going back to work she is met by a High Angel who removes the mark and departs after telling her that nothing good comes of demons and humans mingling.The angels name is Seraphine The angel has gold armor that covers only her arms, hips, bosom, and legs. A skirt that is flowing and blue hair. Anyway, the demon comes back and tries to mark her again, only to be attacked by that angel and this is where we learn about the physiology that makes of a Demon and Angel Body. Angels are made of light, their blood is liquid light and shines brilliantly. They feed off the sunlight, but in their world, on their side of the world the brighter the light the higher the angel and if you can stand more light you can get stronger but it usually takes time. Demons are made of poison. Their blood is poison, and the higher levels of poison the strongest they can get. The deeper in the demons side of their world, the stronger the poison. The very ends of both worlds is where the leaders of these worlds reside. The Masera for the Demons and the Arch Deity for the angels. Light hurts demons when it pierces them, and poison hurts angels for the same reasons. The main character puts up a fight, but his level is not even close to the Sera's who cuts off an arm and jabs a light spike into his stomach and then finishes by cutting off his wings. She departs without care or worry and Miyu takes the demon home after pulling the spike from his belly. In great pain he is unable to move, but Miyu feels compelled to help him simply cause he was only trying to help her. But a few hours after the stabbing, the demon sprouts Angel wings. His power is super weak though. (I should mention that both the demon and angel worlds is the same plain while the Earth is on another. Clouds form the portals between both so if clouds suddenly appear someone is coming or going. Storm clouds signify the stronger entities.) Anyway, the demon tries to live as an angel for a time, meeting people, it would turn into a Harem manga by this point as he would meet a girl who is trying to save a tree and uses what little power he has to save it. Meets another girl that is into demons, and can sense them. She is an odd goth girl. So this is where a few characters would be introduced. This arch would end with his powers waning so much that he has to go to the angels side of the realm and recover powers in the pure light of there world. Connecting the two worlds is a rock walk way that goes thru a large amount of fog. The demon would be watching it when Sera would appear and show her loving side. He is hiding his face while leaning on a guard post when he senses some demonic poison arrows flying at Sera, he intercepts them and is taken, as a noble warrior to a place deeper into the angels world. Sera, who had literally forgotten him already would remember after a moment, the demon waking up before she does and he would escape. Now with demon wings again. He is able to speed out of there while under attack and go back to the demon side to recover. But his eyes are changed as he has one white, the usual eye color of angels and one black demons. After recovering he would flee the realm and go back to live with the OL. Here we would find out she has a scientist uncle who lives no to far who picked up the light spike a very rare thing to get. With a grin on his face the first arch would end. :3