In the Global Gaowu World, I Became the Ruler of All Realms from the Start

[Naruto + One Piece + Bleach + Marvel...]

After transmigrating to a high-martial world amid a spiritual qi revival, Fang Mu becomes the ruler of the Reincarnation Space from the start.

From then on, he begins a life of growing stronger by revealing the secrets of the Myriad Worlds.

He reveals the secrets of the One Piece world. After learning of Ace's death, Whitebeard is consumed by grief and rage. He offers up the [Tremor-Tremor Fruit] and [Three Types of Haki], then beats Blackbeard Teach to a pulp.

He reveals the secrets of the Naruto world. After learning that Rin's death was part of Madara's scheme, Obito Uchiha offers up [Kamui] and [Hashirama Cells], then pulls the oxygen tube right out of Madara Uchiha's nose.

And so on...

When Fang Mu returns to the real world with these abilities, he discovers that he is already invincible...