The Last Assassin

This book speaks about a boy who has high level skills and great powers to be revealed. His clan were expert assassin's, but have now lost their ways, because of their families being enslaved. Although, the boy's father never changed, but soon enough died of old age. His father always left by a powerful dagger. The boy was accidentally scarred by it by practicing his fighting skills. The boy never knew of the dagger's power, and now that will be revealed in the book.

Boy's name: Jason Yagami
age: 17
gender: male
hair: black
eyes: silver
height: 5'4