u are the owner of the most famous company in Korea, u are famous because at age of 20 you are good at handling business, 1:35am in the morning u are alone inside ur building and u are still working inside ur office while u were working on ur laptop, it suddenly went off and all the lights in the entire building including the elevator were not working, u were surprised because you knew that all your employees had gone home, You called the security guard of the building but there was no answer