C1581 Three Crossings Supreme Imperial Dragon Platform!

"System!"

"Use these specified materials to upgrade the Immortal Killing Cannon into a Supreme Imperial Weapon!"

Su Lang licked his lips and issued the command, "Don't tell me there aren't enough materials. There's more than enough for two upgrades!"

"Ding! Supreme Emperor Level Materials consumed: Supreme Imperial Souls *5, Remnant Souls of Heavenly Dragon *2