Become a Jailer to Watch an Immortal? Please Call Me the King of Night Hell

The chaos of the Pingxian Gate in the Dayu Dynasty brought peace to the world, and immortals were banned in the world. Immortals who break the law are guilty of the same crime as the common people, and they are all sent to the Xuan Prison by their commanders. Jiang Xuan traveled through time and became a jailer of Xuan Prison. He had to face a cave full of talented people as a mortal, which was very stressful. In order to survive, he decided to combine modern technology with immortal magic—— "Gongsun Qiang, you are good at puppetry. Build me a steam stove." "Mr. Ge, you are good at refining elixirs and poisons. Make glass cement for me." "Xiao San, you are good at fire magic. Burn the steam furnace for me and turn it on at full speed." "Zhang Huaiwei, you are so good at Qi Men, uh... Give me the fifth-level wind with the character Xun." Carry out cultivating immortals and farming to the end, push the immortals... To the extreme, and let everyone use their talents. However, all this has to start with the rise of the famous "Night King" in the future. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.