Not even once

Description
Finish the game without killing any citizens.
 * "Killing" here not means die by your hand, but only means "Embrace".
 * If a citizen died not by your hand, it will not impact earn for this trophies. (like you failed to save some citizen who were attacked by skals)
 * If a citizen turn into a skal, killing it will not impact this.
 * If a citizen join the Guard of Priwen and attack you on street, kill him will have no impact on this.
 * You can not earn this trophy in story mode.
 * So just don't embrace any citizen to get this trophy. But pay more attention during the Mary boss fight, there will be a father lay down in the battle field, if Mary get lower HP, she will embrace this father to restore the HP, and before that, you can also embrace this father. And if you do so, you lost this trophy.
 * This trophy will pop up during the end cut-scene.