Since 2033 Korea has experienced the worst period of its history. The economy has fallen like the health of Korean people. The ASOR, an extremely dangerous virus, has been spreading through the territory. Because of that the gouvernement made the SPH, a project to save humanity. The story talks about Kim Hwa-jin. She was an high school student who like singing and dancing, eating spicy food and who was very intelligent, but bullied by her classmater. When the apocalypse arrived, she came back home after studying in the library, she didn't found her family but just a letter saying that the gouvernement of SPH asked her family to take part in the experiment. But she knew that the ASOR has been created by the gouvernement and that her family wouldn't survive. 3 years later Kim Hwa-jin became Ko Myeon-seo. During these 3 years Kim Hwa-jin changed her name and she entered a gang and became its most violent member. She had only one goal in mind, revenge her family. But her plan didn't go the way that she expected . Because, Park Jonghwan, a man who she had became close to, was an obstacle to her plan. He was supposed to be means to achieve her goal, finally he became her worst enemy for the plan.