Maemd Hiw

The spirit known as Maemd Hiw used to live life as a teenaged girl, but she was murdered by human traffickers and her soul remained on Earth–Prime. Now she wanders Bangkok searching out traffickers as her victims. When she finds them, she freezes them with supernatural cold and leaves them frozen, terrified, or dead.
She hunts Bangkok at night, passing through walls and lurking invisibly until she spots her targets. Those who follow her work, including Detective Somkid Aromdee, have noticed she becomes less discriminating with each passing season. At first her victims were upper-echelon crime bosses caught in the act of buying and selling people, but she now hunts street-level pimps and even their customers. Whether this is because Maemd Hiw is losing her identity and reason, or because she has a plan, is unknown, but it’s definitely making things difficult for anyone who traffics in flesh.