Within a Hollow Heart - Chapter 170: Volume 2, : "Threads Unraveling"

He—an enigmatic and cold-blooded soldier with a mysterious background.
She—a ruthless and bloodthirsty spy.

Traveling to the world of Xianxia, ​​Shen Ping practiced like walking on thin ice for more than 20 years, but he didn’t have a golden finger. With his ordinary aptitude, his progress in cultivation was slow.

It wasn’t until I planned to lie down completely and married a wife that I was shocked to find that the way I opened the world of Xianxia was a bit wrong!

“Players are welcome to board the special train for the Dimension Crack game. This train will go from the E-level departure station to the D-level station. Please ensure that your life is safe and orderly get on the train and abide by the rules of the ride.”

“Ride rules are as follows:”

“1. Please do not bring non-game items on the train. (Except underwear)”

“2. Must consume. (The train staff are all working without pay)”

“3. Do not turn on the lights after turning off the lights. (Except for those who are daring and talented)”

“In addition, the train encourages a variety of leisure methods such as sneak attacks, fights, and hunting. Players are invited to choose at will.”

“I wish you a pleasant journey.”

- Description from novelbuddy

William and his college class are ripped from Earth and thrown into Aethel, a world on the brink of collapse. Everyone gains incredible magical powers – except William. Mocked and underestimated, he’s an outcast among heroes. But William has a secret: an SSS-ranked skill that lets him travel to Aethel’s past. Learning lost magic from ancient masters, he’ll surpass his classmates and become the true savior Aethel needs. But can he overcome the dangers of the past and present to forge his own destiny? While others studied about the first mage, William could go back in time and see the first mage himself! While others dreamed of seeing a dragon, William could go back in time, hatch a legendary dragon egg and turn it into his puppy. While others used common materials to craft their items, William could go back in time and mine materials that weren’t find anywhere in Aethel anymore. Is it unfair? Perhaps, but William was not the type of person to not use the powers the universe gave him.