"YOU DON'T NEED TO WATCH MORE GAMES. TURN AROUND"…THE IDENTITY OF 'THIS CHEERING' THAT HIT THE K LEAGUE

At the Seoul World Cup Stadium on Feb. 22, the stands in Seoul went wild when FC Seoul's Lucas scored an additional goal to seal the victory, making it 2-0. Seoul fans cheered with joy that seemed to leave the stadium. More than 10 minutes are left before the game, and some signs of abnormality were found among the fans in Seoul. Are they turnin