The heroine Lilia is one of the lowest-level battle angels in the heaven. She is regarded as an "unclean" existence because of her weak affinity to shadows and is ostracized. During an siege mission against a rift in the abyss, she was framed by her fiancé, Michael, who was also the son of the God of Light. She was slandered for colluding with the devil. Eventually, her wings were broken and she was thrown into the mortal world, never to return.
Life Contract: Lilia provides him with soul energy, and he gives her power to help her get revenge.
With the help of Asmodeus's power and inheritance, Lilia discovered that she was not "unclean", but had the lost bloodline of the "Angel of Chaos" who controlled both light and darkness. While disguising herself as a fighting coach in the modern city and adapting to human life, she used the power of the contract to hunt down demons and fallen angels who came to the world, absorbing energy, and constantly awakening the power of her bloodline.
As her power grew, Lilia not only launched hearty revenge against Michael and the heavens, but also gradually revealed the truth about the war between gods and demons thousands of years ago - the so-called God of Light was just a false god who stole the power of Chaos, and the "Angels of Chaos" family were the real guardians of the world. The relationship between her and Asmodeus also gradually transformed from one of mutual use at the beginning to a close comrade-in-arms with mutual support and secret love.
