Chapter 1 Part 1

Among the residents of Demon's Peak, Sin is regarded as a temptress and cold hearted killer. Forced to consume poisons and experimented on since a young age, the toxins in her body can control those around her. Sin remains a loner among her fellow assassins, who fear her deadly temperament. Things slowly begin to change as Sin is hired to protect the Crown Prince, a mission that evokes memories of her painful childhood. In order to complete her contract Sin disguises herself as a submissive maid and hides her true self, but disguises can't last forever.