One Piece: Marine to Warlord to Conqueror - Chapter 145

Seven years ago, after their breakup, he disappeared without a trace.

Paju, the city of hope, peace and madness.And the tale of a mage trapped in a bizarre world.“In his house at R’lyeh, dead Cthulhu waits dreaming.”

Science and Technology Library: The supreme state of science is theology; an accidental rescue, let Chen Mo get a technology library that collects endless technology, the story begins…

- Description from xbiquge translation

Tang Sect, the most famous martial arts sect of all. By stealing its most secret teachings to fulfill his dreams, Tang San committed an unforgivable crime. With his ambition attained, he hands his legacy to the sect and throws himself from the fearsome “Hell’s Peak.”

But he could have never imagined that this would reincarnate him in another world, one without magic, martial arts, and grudges. A land where only the mystical souls of battle lay.

The continent of Douluo.

How will Tang San survive in this unknown environment? With a new road to follow, a new legend begins…

- Description from Novelupdates