The False Witch Coveted by Two Heirs

I am a fraud who infiltrated the most elite magic academy in the world. Here, everyone has real powers—vampires, werewolves, a dragon clan, and witches—while I survive on cheap tricks and illusion. If I am discovered, my fate will be worse than death. But I had to come: my sister died here. The academy called it an accident. I know the truth—the person who killed her is here. I tried to stay invisible, but it did not work. The blood heir, the little prince of the wolf clan... the most powerful men at the academy surround me, mark me, and declare before everyone, 'You are mine.' Are they falling in love with me, or have they already discovered my secret?