Seol Gyeong-gu, a Korean man whose original name was Kim Shin-rak, had been extremely strong since childhood. He was recommended by a scout to travel across the ocean to Japan to learn sumo. After a lot of hard training, his strength finally ranked third in Japan, but because of his Korean identity, his strength could not be further recognized. Disappointed, Rikidozan drank and fought all day, and met a wrestler from the United States during a fight. So Rikidozan decided to switch from sumo to wrestling, and rushed to the United States to study. A year later, Rikidozan returned from his studies and brought this still fresh sport back to Japan. He defeated the American wrestler in the ring, which excited the Japanese people who were dejected after the war, and became a national hero overnight. But his legend ended at an unexpected speed...