Dragonborn: the Rune Mage of Kassel Academy

He wandered in the Rune Land for thousands of years, but was exiled by his mentor for touching the world's runes. Liang Cheng, who has been wandering in other worlds for thousands of years, and whose soul has already experienced many vicissitudes of life, could not have imagined that he did not return to the underworld of Mordekaiser, but returned to the hometown that only existed in dreams. In the heavy rain, the veil of hometown is gradually lifted. Will the sword-wielding dragon-slaying boy turn into a dragon?