Cool Train: The Japan-Korea Tunnel includes 3 rail lines, one for freight transport, one for passenger traffic and one mixed line, with plans for extension into Manchuria at a later date, replacing some, if not all, shipping between it and Japan.

He wouldn't be the one to execute it, however.

As it turns out, Dai Li did have a plan to destabilize Japan by sowing paranoia and taking advantage of already-present internal divisions within the Japanese war machine.

If the investigation succeeds, it is revealed that Dai Li actually died in 1957, and the IJA and Kempeitai (under a plan cooked up by Kishi) have been spreading false rumors of the conspiracy to foster chaos, so the IJA can launch a coup and install Kishi. Japanese higher-ups quickly becomes paranoid at the conspiracy and orders an investigation.

The Dai Li conspiracy is a conspiracy seemingly cooked up by the former KMT spymaster turned underground terrorist Dai Li that strikes Japan in the late 60s, apparently suggesting that the Japanese military is infiltrated by many Chinese spies.

But Not Too Foreign: Some territories under direct or indirect Japanese control, such as Hong Kong and former Vladivostok, are mentioned as having developed mixed-Japanese cultures over the decades.

That said, it's is possible for them to enact reforms that let them genuinely live up to the rhetoric. As such, they are genuinely surprised when their subjects attempt to revolt and gain independence.

Believing Their Own Lies: The Japanese establishment and the public at large sincerely believe that the Empire was a liberating force for the oppressed peoples of the former colonies of Asia and that their rule is truly beneficial for the peoples of the Sphere.

How things proceed from there, however, depends on who assumes power after Ino. Not only has this led to hybrid/mixed cultures, but in the case of long-standing territories like Taiwan and Korea, it's reached the point wherein any notions of independence have dissipated.

The Assimilator: The Japanization of the colonies and parts of the Co-Prosperity Sphere is shown to have continued over the past decades.

Alternate Character Reading: Chinese cities annexed by Japan use the Japanese on'yomi readings of their Chinese names.

Mobile Suit Gundam will eventually be made in TNO, but told from Char's perspective rather than Amuro's, supporting the politics and beliefs of Imperial Japan.

The student unrest and general youth rebellion that ensue should Takagis reforms fail mirror the social chaos that wracked OTL Japan in the 1950s and late 1960s.

Elements of the Taisei Yokusankai mirror that of the Liberal Democratic Party in real life.

Japan focus tree hoi4