Versatile Mage: Summoning the Eight Great Demons from the Start

After transmigrating into the world of Versatile Mage, Lu Cheng thought he could only cling to powerful allies and live off them. But while performing a dimensional summoning, he accidentally trespassed into the Demon Hell that imprisoned the Eight Great Demons. Demons, Saint Seiyas, undying deities, the Holy City, the Parthenon... “There is no need for the world to continue growing. It only needs to peacefully sleep under my control.”