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Welcome to Nanba, the world's largest and most impenetrable prison. Locked away in Cell Block 13 are four inmates - pill-popping Nico, burly food-loving Rock, gambling charmer Uno and Jyugo, who was born at Nanba and has made more escapes than any other prisoner there - who provide more than enough trouble for the tough Officer Hajime. Follow them and their numerous adventures within the walls of Nanba.
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For a thousand years, the Vikings have made quite a name and reputation for themselves as the strongest families with a thirst for violence. Thorfinn, the son of one of the Vikings' greatest warriors, spends his boyhood in a battlefield enhancing his skills in his adventure to redeem his most-desired revenge after his father was murdered.