What Kind of School Beauty, How Could She Be as Fragrant as the Yandere Empress' Sister!

(The most beloved non-biological sister + the legend of artifacts + imaginative powers + urban martial arts) (The introduction is too weak, please move to the main text, Yanzu Yifei!) The demons invaded in large numbers, but as a former junior sister, in order to protect the human world, she had to sacrifice her own sister? Go to your protective world, dragons have reverse scales and will be killed if touched!