I Bought the Deadliest Dragon Slave

He ripped my heart out with his bare hands to save his whore. I woke up reborn at the exact underground auction. This time, I dumped the crippled ex-Dragon King on my bitch sister and bought the silent black killing machine. For 49 days, he knelt groveling for my heart's blood. I fed him demon chicken blood instead. My new dragon tore him to shreds in the arena, seized the throne, and became my feral, unhinged king who lives only to worship me.