Warrior, healer, guardian and keeper, these are the spiritual status of humans. With the declaration of war by the devil, God is all set to find those with immense faith to participate in the war. But what will happen when an Atheist is fated to become the warrior Princess meant to execute the devil? Maira believes in science. According to her, every situation has a scientific explanation and the 'thing' called God is a myth weak people have created for their own convenience. However, a newly found truth has turned everything upside down for her once peaceful and simple life has now converted to a chaotic one.

When Lust, Greed and jealousy were thriving on Earth, Destiny decided to cleanse the world. All that could put humanity in jeopardy occurred and only the ones with purest souls survived. Among those pure was one girl, who was the purest. God and Destiny bestowed her with immeasurable powers and the title of the PURE ONE. The only condition? Not to fall in love for that person would be the holder of the Pure One, the holder of Power. Even though there was no flower in hell, Lucifer could see the flowers bloom. He had the urge to taint Aeni's purity but he knew that this girl was not easy to toy with. What started as deal with god resulted into something else for Lucifer..... A deal that unleashed the memories of their first love. A love story that spanned for centuries. The Pure One; the reason why Lucifer was called the Fallen Angel.