Imagine waking up to a second chance, armed with the memories of a world consumed by darkness. In *Shadow Dragon: The Fallen Angel Is My Teacher*, a lethal assassin finds himself reborn, gifted with the potent blood of dragons and a burning desire for retribution. Earth stands unaware of the impending doom he once witnessed, a future where the Exorcist Clans crumble and otherworldly forces reign supreme. Betrayed in his previous life, left to die by the very one he served, our protagonist is thrust back to his birth, a twist of fate granted by the System. But saving the world isn't on his agenda. No, his sights are set on a far more personal quest: vengeance. With a fallen angel as his unlikely mentor, he'll master assassin arts and harness newfound powers, becoming a force unlike any seen before. He'll navigate a world teeming with hidden bloodlines, mythical species – elves, vampires, and more – and the looming threat of gods and demons. The journey will take him across multiple worlds, perhaps even brushing against the edges of the SCP Universe. Fueled by rage and armed with dragon blood, he's not just fighting for survival; he's hunting down every single soul responsible for the destruction of his past and his death. Will his thirst for revenge consume him, or can he rise above the ashes of his former life to become something more? Dive into *Shadow Dragon* and prepare to be captivated by a tale of rebirth, power, and the seductive allure of vengeance.