Dragon Prince at the Witch Academy

I accidentally helped mysterious dangerous creatures enter our world, and they started hunting me. And then the dragon prince arrived at the academy! I didn't care about this at all until my secret familiar ended up in the dragon's dessert,... and the dragon considered me complicit in the attempt on his life. Inadvertently, the prince and I became witnesses to a conversation about an impending rebellion. Someone wants to start a war between dragons and witches... And only the prince and I can uncover the identity of this mysterious conspirator. The only problem is that the dragon and I have very different paths and goals... Will we be able to unite for a common purpose? And will we succeed in returning the monsters from another world back?