Well this explains a few things about the story arc we’re seeing play out on The CW’s Legacies.
Her character’s story premise is described as,
A quarter-life crisis causes a young Chinese-American woman, Nicky Chen (Liang), to drop out of college and go on a life-changing journey to an isolated monastery in China. But when she returns to find her hometown overrun with crime and corruption, she uses her martial arts skills and Shaolin values to protect her community and bring criminals to justice — all while searching for the assassin who killed her Shaolin mentor and is now targeting her.
On Legacies Liang portrays Alyssa Chang, a witch who has caused more than a few problems for the shows leading hybrid and twin witches Hope Mikaelson (Danielle Rose Russell), Lizzie Saltzman (Jenny Boyd) and Josie Saltzman (Kaylee Bryant).