After traveling through time, I became the most useless mortal in the world of immortality. When the strange rules came and the immortals trembled, I discovered that these strange stories came from the earth - this became my only golden finger. See how I can use the knowledge of the earth to slap the immortal genius who despised me in the face, crack the rules of the world of immortality, and even more, I have to fight against the mastermind behind the two worlds, and reveal the shocking secret of why I traveled across the world.