Primordial: I, Dijun, Only Want to Build the Great Desolation - Chapter 341 - 253: Ownership of the Kongtong Seal

Wen TianHe originally thought he was a man who’s going to be a domineering chairman. But in the end, he became the man alongside the domineering chairman.

The sharp edge of a knife is difficult to cross; thus the wise man said that the path to salvation will be hard.
—Mao Mu, (Blade)

The blade of a sword must be sad for its lack in friendship. Because no matter whom it wants to give a hug, the other would be divided into two.
—Vietnamese Overbearing Chairman, Si Guan (Silence is Golden)

- Description from Novelupdates

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

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.

“The universe is vast and boundless; the Dao is unpredictable.”Lin Beichen was reborn into a parallel world, and a mysterious and profound voice echoed in his mind. Though he didn't have a system, he unexpectedly discovered his Heaven-Defying Comprehension and could perceive everything at a glance.“How should I utilize my Heaven-Defying Comprehension?”Until one rainy day. The deluge poured down, Electric Flash intertwined with Lei Ming, and Lin Beichen gazed out the window in a daze. In that moment, inspiration struck, and his heart resonated with a profound sensation.He slowly stretched out his hand, opened his palm, and looked toward the thunderous sky. He began to clasp one finger toward the heavens and the earth.“In this world, there was no Cultivation Method. But since I am here, one should naturally appear!”“Palm Thunder!”[ps: A unique protagonist-centered cultivation genre]