Origin
Hsien-Ko was born in china in 1730. Her mother was killed by a demon and sealed in darkness.
Hsien-Ko used a special technique to turn into a Kuang Shi, a sort of zombie/ghost, to free her mother.
Powers
She uses a wide variety of weapons hidden in her sleeves, for example knives, swords, saws, bombs, chains, spiked balls, a giant gong and various other tings.