Daisuke Takahashi and Mao Asada were the first two skaters to sweep both singles titles for Japan, doing so at the 2010 world championships.
Sui and Han skated to “Bridge Over Troubled Water” and opened with a quadruple twist that may have proved decisive in the end.
“We want everybody to see the splendor, the beauty of figure skating, and also to show the style of Chinese skaters,” Sui said.