Yu Yanzhao died at the Northern Crown Great Wall. This battle had not been honorable. Di Jue had summoned the Fourth Immortal Realm's most powerful beings to surround and trap his own disciple before killing him.
The Fourth Immortal Realm was thus able to annex the Fifth Immortal Realm.
However, the Fifth Immortal Realm already had many exceptionally powerful immortals and demons. If immortals of the Fourth Immortal Realm wished to survive in the Fifth Immortal Realm, they had to abolish all their Great Dao and cultivation. Yet once they did so, they easily fell prey to slaughter by the Fifth Immortal Realm's experts.
Therefore, Di Jue displayed an iron hand, killing those Fifth Immortal Realm experts who needed killing and imprisoning those who needed imprisoning.
At the time, Yu Yanzhao had a son. Di Jue named him Crown Prince, granting him the title of Great Immortal Lord, and used the Jade Crown Prince to win over the old dynasty's hearts.
Later, the Jade Crown Prince could not keep his mouth shut and repeatedly made remarks about rebellion. Di Jue therefore stripped him of his position as Crown Prince and ordered him to relocate to a desolate place at the edge of the universe.
After some time, Di Jue feared that the Jade Crown Prince would collude with the old dynasty's officials in rebellion, so he banished the Jade Crown Prince to the Nether Capital.
Several years later, Di Jue cast the Jade Crown Prince into Nether Capital 18th Layer. Only then did he rest easy.
Seeing this, the Empress said, "The emperor has betrayed his original heart and does not practice Benevolent Governance. I fear this will bring calamity. He should be remonstrated with." Thus, she remonstrated with Di Jue.
Di Jue was displeased. He deemed the Empress unvirtuous