Combined WC squad of Korea and Japan. how far do they go? Is there a world where they win it all?

In a parallel universe where WW2 was a stalemate, and they divided up China instead of Korea. Korea is fully annexed to Japan. Here's my stab at what the squad would have been in the Qatar World Cup, other than 3 GKs, and 3 missing field players that won't get much game time.

DF Kim Minjae FC Bayern Sugawara Yukinari FC Southampton Ito Hiroki FC Bayern Takehiro Tomiyasu Arsenal Itakura Ko Monchengladbach

MF Lee Kang-In PSG Endō Wataru Liverpool Morita Hidemasa Sporting CP Hwang In-beom Feynoord Hatate Reo Celtic FC Daichi Kamada Crystal Palace

FW Son heung-min Tottenham Hotspurs Itō Junya Stade de Reims Furuhashi Kyogo Celtic FC Kubo Takefusa Real Sociedad Mitoma Kaoru Brighton & Hove Albion Hwang Hee-Chan Wolverhampton Wanderers

Let's imagine this is trained by top talent of the NT coach pool e.g. Jesse Marsch.

Would they be a first seed team?

How far do you think they go?