The Dragon Tiger brothers who live as yakuza in the Han Chinese district of Japan. The arm of his brother, Noboru, is engraved with a dragon rising to the sky, and the arm of his brother, Takeshi, is engraved with a tattoo symbolizing himself. After the war, they draw the blood of Sangokujin Wang Haidong, who was killed in a mutiny in abandoned Japan, but has been gratefully serving the leader of the Takeda group who murdered his father. One day the group leader tells them to take over the group. Honda, a young leader who is not convinced by this, partnered with the head of black society, Wang Rei, and began taking over the Han Chinese district and the Takeda group. As a result, brothers Ryu-Tora and Wang Retsu will play a deadly battle without meeting the real brothers who draw Wang Haidong's blood.
