She is the perfect young woman of the present day, and also the ace assassin of a shadowy organization. She began plotting against the organization at the age of eight, all to give her younger sister a better life. Only after she transmigrates does she learn her "true identity." She has always been nonchalant and laid-back about life. She has even lost her emotions because of an inheritance, but she possesses extraordinary learning ability and memory, as well as a special status no one could ever imagine.
