Shinsou Hitoshi is a young man with a calm, relatively peaceful life... Until two individuals crash into his life after his mother spontaneously disappears, both other them runaway royalty from different kingdoms... They manage to convince him to let them join him on his journey to find his mother, and on the way they pick up more strays like flies to honey. Meanwhile, the heir and future leader of the barbarian race has embarked on a harsh journey, determined to find the organization causing damage to his lands and prevent them from doing the same ever again... Only to stumble upon plans to stoke yet another Great War. Coincidentally, the incidents are closely linked, proving that Shinsou and Bakugo must join parties and, much to their dismay, join hands in cooperation as well, despite their immediate distaste for one another and their personalities. Will absolute peace finally reign at the end of their journey? Or will they fail to reunite the kingdoms and restore them to what they once were?