Son Heung-min scored twice as Tottenham edged past a team of the best players from South Korea's top flight to secure a 4-3 friendly win.
Dejan Kulusevski opened the scoring after 29 minutes before South Korea and Spurs captain Son made his mark on his homecoming in Seoul.
He curled an effort into the top corner after 38 minutes and slotted home a Kulusevski assist to give his side a 3-0 lead by the break.
But Team K League pulled two back in the second half after replacing their entire team at the break with Stanislav Iljutcenko netting twice within five minutes of the restart.
That prompted Spurs boss Ange Postecoglou to make changes and substitute Will Lankshear volleyed home a Timo Werner cross to give them a two-goal cushion.
Oberdan responded for the hosts with nine minutes left to play but Spurs held on to seal victory, with James Maddison hitting the post in injury time.
They are back in pre-season action on Saturday, when they take on Bayern Munich at 12:00 BST in Seoul.