I'm not going to let you go for the rest of my life. A world where humans and Ayakashi coexist. Sumire, whose parents were killed by Ayakashi, who had once fallen into darkness, has lived with the only dream of becoming a shrine maiden, even though her relatives are being passed around. However, for some reason, her spiritual power has decreased, and now he is oppressed by those around her as a failure, and her dream is in danger. Then one day, Sumire takes care of Ayakashi, who has become weak, and makes a blood contract to share her spiritual power for his recovery. He was the raven tengu with the highest status and beauty! The royal Japanese-style Cinderella story, in which the hearts that share and believe in each other's lives connect bonds, begins!