The male protagonist is an emperor. His four princes do not want to be princes, so they racked their brains to not become heirs. The eldest became a monk, the second became a Taoist priest, the third became a short-sleeved shirt, and the fourth chose to leave the palace. In the end, there was no other way. Through the concubine, he learned that there was a prince born to a concubine who was thrown into the cold palace. The male protagonist Er Ye Zhan Zhao is proficient in all kinds of strategic strategy books. After time travel, the system told him that this time it was a hell-level difficulty dungeon. The emperor was eager to establish himself as the crown prince. Unexpectedly, the second male protagonist became the prince without any effort. He thought he would be better than the other four princes. However, 59 years later, the system told him that he had entered the wrong dungeon. He was so angry that he yelled.