In the mortal realm, Cathay was perhaps the nation that harbored the most animosity toward Nippon.

During World War 2, the Cathayan Underworld managed to ward off the Nipponese forces after a herculean struggle. At the time, Cathay had been at its weakest and most vulnerable state in a very long time, and Nippon's soldiers had swept through the entire nation. If it weren't for the valiant resistance mustered up by the people of Cathay, things would've been far different from what they were in the present day.

It had only been several decades since that war, and many of Cathay's older generation still remembered those hardships. In addition to that, Nippon had never been sincere in its apology and frequently paid homage to the Yasukuni Shrine, so even in the newer generations, many of Cathay's citizens were still very discontent with Nippon.

However, no one would've ever been able to imagine that Cathay would be able to conquer Nippon in the underworld!

Not long ago, there had been widespread controversy surrounding the Nipponese Underworld, and countless netherworldly citizens of the Cathayan Underworld were urging the central government to attack. However, there was no clear verdict as to whether troops had been deployed as...