When Serilda learns that her father has a past of being an assassin she wants to carry on the family tradition, when she is denied by her father she runs away to find the sensei who trained the greatest warriors. She returns home and accepted by her family. However she isn't there to bond she is on a mission. She knows that her family has a dark secret and she must find out what it is and destroy it, even if it means killing her own family. When she returns to her sensei she meets his most recent student Tai she quickly befriends the boy. The more time she spends with him the more she is drawn to him. Can she trust Tai? Will her family's secret force her to kill them? Will this new life protect her or consume and destroy her? Will this boy be what he seems or does he too wear a mask?