The heroine, Karen Mochizuki, is just ordinary schoolgirl that can be found everywhere. However, her true identity is The Angel Azriel, The heroine who fight for justice againts evil extraterrestrial creature called Dark Legends. Karen also has a boyfriend named Hiro and is in middle of a sweet and sour romantic life. But the evil organization heard about their relationship, and planning to attack her very weakness, her loved one. Will Karen be able to win against Dark Legends and maintain her relationship? or will she succumbs to the pleasure of darkness?