True Rune Saga

When Alan found an ancient crystal tablet on Earth, his soul was forcefully dragged to another world, Inhabiting the body of Cain, the third prince of Vertalis kingdom, Alan decided to enjoy his hedonistic royal life until his father, the king suddenly died, his mother killed and he was exiled to a frontier unexplored territory. In a world where True Rune exist and bearing the power of a rune knight, can Alan develop his territory and build his own kingdom to create a brand new world?.