She has a strong background.
The daughter of a British princess, the sister of the leader of the world's second largest organization, and the goddaughter of Mu Xiaoshi, who is the world's leading virus developer and detoxifier. She herself is the world's number one killer along with Yi Yihan, and one of the core personnel of the world's number one organization.
He is responsible for taking her down.
He is the top executive of the international FBI, and he is provoking her again and again to capture her all over the world.
This is a story positioned internationally.