This is the case of the old saying, "Flowers don't bloom when planted intentionally, but willows grow into shade when planted casually."
At this moment, the Sum Emperor calmed his emotions. Since Great Wu had decided on a military campaign against the North Country, he had to accelerate his plans and could no longer afford to delay.
After Great Wu helped the Sum Imperial Court defeat North Country, the Sum Emperor planned to give the Martial Emperor a big surprise.
With formidable military strength, the Sum Emperor believed North Country would last a considerable time, which would not only deplete Great Wu's military might, exacerbate its internal contradictions, but also rid Great Sum of this trouble with North Country.
Once Great Wu eliminated the nuisance of North Country, the internal problems of Great Sum would be nearly resolved. The Sum Emperor believed by that time, he would have likely ascended to the Heavenly Human Realm.