I have come from the future where League of Legends decides real world politics

It all started when Russia finished off its invasion of Ukraine and threatened to go for Poland. The rest of Europe threatened to launch missiles and go to war with Russia, to which the Russian foreign ministry replied "lol u guys got no balls u get US to bail u out n then let everyone hate them". The EU, true to the Russians words, had no balls and instead looked to find a new way to beat the Russians without fighting or asking the US for help.

The threat of a Russian controlled Europe loomed and the UN condoned an Emergency meeting in which Secretary-General Ban Ki Moon proposed a solution. "Myself being Korean, I have come to love the game "League of Legends" The prelude of the game is Champions from different regions are summoned to fight over internal disputes. Using this knowleadge of the Ancient Lore, I have decided the World should adopt a different strategy in which different regions shall now be represented on Earth through their League of Legends team, solving disputes and politics. Such failure to follow these new rules shall result in the immediate termination of the region. That is all."

2 months later, The armys of EUE and Russia met at the border of Ukraine, on either side with a 1 mile dimilitarized zone. 1 armored truck from both sides came carrying the 5 chosen from both regions, super computers and a sponsorship from Mountain Dew and Doritos. The summoners faced off on summoners rift in a best of 1. 45 minutes past and both sides of the zone were in roars. A near sonic boom was made from the sheer noise. Russia had just got the baron buff and had 5 dragons under their belt giving them the mega buff. the ADC split a moment to path the other way to the EUE's base and instantly was blown up from a bush cheese, causing a 5v4 fight. It was the most epic battle of any league battle... but in the end EUE mustered out the victor with the jungle remaining to finish the game, defending Europe.

Fast forward to world championships, season 5. The Japanese region faces off against China, (korea decided to sit it out this year after much bribery from everyone). Both regions put in the winning conditions, should China win, the Japanese must surrender all islands and territories to china for 10 years, as approved by the UN. Should Japan win, they recieve 500,000 square miles of land from the Chinese for keeps. Both sides approved, the now best of 9 game commences with no breaks.

who wins?