The Yu Family's heirloom, the Book of Genesis, is a page-shaped golden foil with no text or symbols on it.
According to Yu Tian Tao, activating the page can open a portal to a special world, allowing one's spirit to enter.
The world is extremely dangerous, and once one's spirit enters, being killed there could lead to actual death.
However, the time flow in that world is vastly different from the Material Cosmos. It's approximately ten thousand to one.
One day in the real world equates to ten thousand days in the book world.
Experiments have shown that the time spent in the book world only counts as one day. It does not consume an individual's actual lifespan.
This time flow difference effectively lengthens time by ten thousand times, which holds immense value.
Though only spirit consciousness can enter, the spiritual consciousness can cultivate in the book world. Training for just two or three days can cause the spirit power of even an average person to soar.
