Failed To Abandon The Villain

One day, my father gave me a boy slave. He said he saved him from the battlefield because
of his good looks. "He has a seal engraved on his heart. As long as you have this bead, he
won’t be able to disobey you. So you can order him to do anything.” The boy looked rather
grim after hearing what it was I ordered. Ah, was I treating him too much like a dog? As my
father squeezed the bead, the boy then knelt at my feet. “Master” His red eyes flashed,
illuminating his eerie gaze while smiling madly. Why is he like this to me?! I tried my best to
treat him properly!