Crossing to One Piece world, he became Roger’s younger brother. Unexpectedly, Gol-D-Roger who was in his fifties had a teenage brother. But he was so weak. Fortunately, at the age of sixteen, he actually found himself with a possession soul system. He had attached to the master IP man, also to the White Phoenix and to Ge Nie with his strong ability of the Hundred Step Flying Sword. If you think that...