Ice skates forward, regardless of east or west.

[Figure skating + revenge between two strong men + tragic love on ice + sports competition + suspenseful plot twist] Gu Xidong, world champion in figure skating, is the "black swan" on the ice.
Three years ago, an "accident" left his partner bloodied on the ice, crippled his left leg, and ruined his reputation.
Everyone said Gu Xidong had gone mad, smashing himself into a pulp on the abandoned ice rink.
Until that woman named Ling Wuwen appeared.
She tossed Gu Xidong a USB drive: "Want to know who brought you down from your pedestal?"
Gu Xidong thought she was his lifeline.
Later I learned that she was an even deeper abyss.
"Cooperation is possible, but the rules are: I'll save your leg, and you teach me how to skate."
"What should we teach?"
"Pairs figure skating".
Gu Xidong laughed: "Look closely, I'm a cripple."
"No," she whispered in his ear, "you are dead—and the dead are best suited for revenge."