MTL - Immortality Cultivation Era - Chapter 1801 I don't understand

Yang Tian, a Legendary Beast Tamer who tamed Legendary Monsters such as the Six-Wing Purple Gold Lion, the Undead Lich, and the Thousand Feet Ghost Vine has returned to three days before the Post-Apocalyptic Era begins.

“I’m alive... again?”Adam died and was brought into a fantasy world. Then he died again, and has been reborn into a new (?) fantasy world. His life, as before, is in the hands of the dice. Come and join Adam as he rolls his way in and out of trouble. The story has a very slow pace, and has elements of really light hearted, wholesome stuff, and really dark, gruesome stuff. Sequel/Reboot of Beyond Average. You don't need to read Beyond Average, but it will explain a lot about Adam.Also, you can start at the beginning of each year (301, 501, 701, 901, 1001, etc), because most of the systems and relationships will be partly explained when they come up, and most others are easy to pick up after a few interactions. Finally, I am also currently in the middle of editing and rewriting the first year, and perhaps other years. A lot of my early chapters are a rough read, and even I cringe reading them.

Yeho is a distant relative to a king in a small kingdom. Even though he is a distant relative, his house was very poor, and his mother was addicted to gambling. One day North Empire asked for Princess Sooyoung to be a concubine of an old Emperor because she was known for her beauty. But the king really loved his daughter so instead he ordered Yeho’s older sister to disguise as Princess Sooyoung and marry the old Emperor.

Yeho told his sister to run away with her lover, and his sister had to leave her younger brother alone with his mother. After she ran away, Yeho asked his mother to give the things back to the king that she got for trying to sell her daughter, but his mother already used the gifts to pay off her gambling debt. He was trying to give the gifts back to the king to take away his order, but now he can’t do that anymore. He tells his mother to run away, and he disguises as his sister to go to North Empire.

After he got there, he was trying to tell the Emperor the truth and take away his life, but the Emperor went out for few days to look around his empire. When the emperor came back, he wasn’t as old as he thought.

In this brand new era of Beast Taming, who can rightfully claim the title of the King of Beasts?