The angel of calamity

A high school girl by day and the worlds most notorious serial killer. She is known as the "lonely assassin," "soldier of justice ," and the "angel of death,"etc. The media says that she comes out from the shadows and kills. But here the twist, she only kills criminals in "holy" places. But the police and the churches don't like how she passes judgement, so there's a nation wide "man" hunt for her. She secretly works for a shadow organization who tends to help the world more than the actual governments. Whose side will you choose? The side of the assassins or the side of the hunters.