I Can Upgrade Unlimitedly

Yang Hao travels through other worlds to obtain an infinite upgrade system, where he can upgrade infinitely as long as he sells items. Is cultivation a bit weak? Sold me this Godless Soldier. A bit bad work? Sold me this ancient beast. Not gifted enough? Sold me this ancient holy place. Yang Hao: “If I sell this world, I should be able to upgrade to a god. . . . . . ” Main roles: Yang Hao, Huangfu Meng