紅心王子 [Kurenai Ouji] Series by Souta Kuwahara, 桑原 草太

Is their meeting a coincidence? Is their love inevitable? Sakura Koujirou is a demon prince who descends to the human world in order to take human souls. But after a strange turn of events, he somehow ends up living with a human girl, Hana... This is a story of young love, sweet and touching.

Is their meeting a coincidence? Is their love inevitable? Sakura Koujirou is a demon prince who descends to the human world in order to take human souls. But after a strange turn of events, he somehow ends up living with a human girl, Hana... This is a story of young love, sweet and touching.

Unsure what to do about his mission, Koujirou is dragged into the school festival to play the role of...a prince! He looks way too natural in the outfit, gaining even more attention from the girls than before. But when someone a bit too affectionate shows up, all the girls fall into panic... Could it be his girlfriend?? All the while, Koujirou can't seem to take his eyes off Hana......

Koujirou heads back to the demon realm looking for a place to belong, only to find out that he might be looking in the wrong place. Meanwhile, Issa is back with his clan on the worst day possible--on the day of the full moon. With powers beyond his control, will he be able to avoid hurting the one he cares for?

When the angels show up to complete their mission the power of the crimson eye comes out. But the crimson eye still holds its secrets and no one knows the real truth behind it. And as things begin to surface, it turns out the prince of demons might not be a demon?!

Jirou has a rude awakening concerning his mission in the human realm and the real matter behind the soul he's supposed to steal. Knowing as he does now, can he still go through with it?

Heaven is divided as the Crimson Maiden's execution begins, culminating in an aerial clash over Hana's right to live. When Kirara proposes bringing the matter before a higher power-the queen of Heaven-Koujirou wasn't expecting his biggest secret to come to the forefront of the negotiation. Now he'll have to face the truth that's haunted him for years...

The story of Koujirou's parents continues... Medicine-maker Margaret finds herself becoming more and more involved in the affairs of another world after creating a special remedy for a man named Sentarou. The pair is slowly falling in love, too, but there's one major problem: Sentarou is a demon, and Margaret is a human. Are they doomed to be star-crossed lovers, or can they find a happy ending?