5 Steps to Be a Hitman"

Jinwoo Lee’s life has been shaped by loss and loneliness. Orphaned at a young age, he was adopted by a wealthy but emotionally distant family, only to discover their dark secret: they are professional assassins. Drawn into their shadowy world, Jinwoo stumbles upon a mysterious book titled 5 Steps to Be a Hitman, a guide that transforms his understanding of survival, power, and morality.