Iwao Shimabukuro is a former featherweight professional boxer from Okinawa, and was affiliated with the Okinawa Seaside Gym. After retiring he continued being a fisherman.<br /> <br /> He was Ippo Makunouchi&#039;s fourth challenger, whom was first to find a way to break his Dempsey Roll and was the first opponent in the Rising Saga. <br /> <br /> (Source: Hajime no Ippo)<br /><br />