World war 3 simulation Japanese Empire vs Greater german reich (USA)

Inspired in the man in the high castle, this scenario is all about a complete axis victory on world war 2, however unlike in the TV series, the japanese are way stronger and they began to run a pro-democratic government, receiving support from the chinese. Germany suffers catastrophic defeats at USA due to resistance's massive attacks on German's america infrastructure, with about 1 million soldiers fighting a guerrila war against germans in their territory while Himmler and his government suffers from internal crisis after Hitler's death.
sorry for not posting, being busy yk

This wasn't meant to be realistic, this is just a for fun simulation of how WW3 between Axis vs Japanese would be in my conception.