In South Korea, the city of Seoul is currently being shaken by the news of a 'mysterious killer' many victims have died in tragic ways. Even now, the police are still looking for the mysterious killer.

For almost a month, the city of Seoul has been haunted by this mysterious killer, many people even stay at home because they are afraid of being killed. Meanwhile, you have to go to school to continue your education.

You're still 14 years old and you live alone in an apartment because your parents are gone, your feet walk up the stairs to your apartment room. You came home late today because you had to work part time after school.