The Witch-Guarding Warden

The Rose Prison of Silver City was known to be the most secure and sturdiest female prison in the entire continent. The most dangerous and vicious female criminals on the continent were thrown in here, and I, Aiden, was the warden in charge of this prison. However, the original "Aiden" was a powerhouse who was adept in using guns, swords, and even black magic. I was nothing but an ordinary person who had transmigrated into his body! Did I know any of the skills mentioned above? Absolutely not.