I had a college roommate from South Korea who, along with friends he invited over, woke me up with their excessive cheering during an early morning WC match that year. Before I could get mad, they handed me a bowl of Korean food they cooked up, and we all cheered together. S-Tier indeed
Carter Williams
Every four years the world discovers anew that Koreans are S-tier sports fans
Mina Kimes
The South Korean fans couldn't bring the tequila bottle inside the stadium, so they started drinking it all together outside and also invited the Mexican fans to join them.
Video
Steve Brewer
Mexican fans spot a South Korean fan and immediately adopt him