I Have a Flag of Two Realms!

With a flag of two realms, Wang Hao found that he could travel to/influence different worlds to a limited extent. In a different world with the possibility of immortality, Wang Hao's goal was clear from the beginning. He wanted to live forever, he wanted to become an immortal and an ancestor, he wanted to stop eating beef... However, it seems that the way I crossed over to another world is a bit weird... And the way he affects other worlds is also a bit extraordinary...