Tista leads a dual life as an assassin and a university student. What price will she pay to save the people she loves? Tista, a.k.a. Sister Militia, the Grim Reaper of New York City, leads a dual life as a university student studying to be a teacher. With extraordinary eyesight allowing her to make shots at exceedingly long range, she has come to be feared by the criminal underground. Tista knows she is doomed, but can her feelings for a young man she just met bring her back from the abyss? And what will she do if he finds out who she really is? In New York City, the NYPD struggles to track down a serial killer known as Sister Militia, who has been targeting mobsters and other criminals in the Big Apple. No one knows who Sister Militia really is except a few residents of a Catholic orphanage.

Her name is Tista.