The heroine is a person with a complicated 'blood': her father is the son of Cain, and her mother is the nine-tailed fox from the East - the king of all spiritual creatures. She carries the bloodline of Yami, but possesses a trace of holiness. She is called the 'existence beyond God', but she is destined to live in hatred, whether it is thousands of years ago or now...
"She is the only way to change the fate of our vampires." - By Cain
"Miss, I am the only one who will not betray you." - By Sebastian
"You are the number 0 of the brigade, you cannot leave." - By Chrollo
"You are a killer who beats up the enemy's Hakkas. Killing people is your career." - By Siba
"Oh hehehe, Xiao Yiyi, you are the princess of Dongbang, we will never dislike your dark side." - By Dongbang