You Yan and You You, who were bought back by the adoptee from the normalized trafficking of women and children, seem to live a happy life where everyone envies the adoptee as his biological daughters, but secretly they are trained by the adoptee to become the killing tools he uses. While maintaining the appearance of normal high school students, the two were trained in the dark basement. You Yan always thought that You You didn't have the courage to kill, until You Yan was captured by the target on his first mission. You You sat at the window, played with the knife, and said with a smile: "Ayan, the only way to solve the problem is to kill him."
The three views are not correct, the two protagonists are both crazy, don't disturb them if you don't like them
Intent: Madman and Madman's Redemption