She was once a proud demon wandering around the edge of hell, but she disguised herself as a confused angel for him; he was a wealthy young man from a wealthy family, free, noble, indifferent and carefree, but always accompanied by loneliness, longing for but unable to reach true love.
A pair of people who had nothing in common started a cohabitation life of love and deception because of a ridiculous promise. And when these enemies who lived together, they were like fire touching ice as soon as they met, creating different sparks...