In the world of his favorite novel, Ryan was reincarnated as the character Extra, whom no one pays attention to. Not once, but twice.In a world where the Paths to Divinity define your status, he is in the body of the most useless. The scorned member of the Royal Family, who is not even considered in the fight for the throne, whom his brother and father want to kill.Even so, armed with knowledge of the past and the future, he decides to face his present with determination and forge his own legend, becoming a Walker of a hidden path—one that may allow him to overcome them all... or devour himself.Perhaps either option would be his salvation in a world that has fallen into an apocalypse because of the “Kazaks”, beasts of unprecedented power that threaten to destroy all.But he vows not to rest until he achieves his revenge against the protagonists and understands the mysteries surrounding this world.Follow the story of the despised Ninth Prince who rises in the world and becomes a true Devourer of Paths.