MTL - 9 Heavenly Thunder Manual - Chapter 556 Lei Yan wakes up

Master martial artists were beings that no one can obstruct. A martial arts expert has been reborn into the body of a genius whose cultivation has been abolished and has been abandoned by a woman. Therefore, he starts cultivating the art of Xing Yi Quan, producing a solar system within his dantian. His innate talent tramples over all the geniuses, and even the geniuses among geniuses.

His powerful spirit and ruthless and ambitious nature, no matter who he is reborn into, will never change! Slaughter is instinctive, being cold-blooded is his personality, exterminating an entire family is only a means towards a goal, cruelty means infamy, and chasing after women… is just an interest.

- Description from Novelupdates

A continuation from where High School DxD Volume 25 left off.

This was the great era of vast warships and the Star River, a time when the multi-universe was shattered and countless Cosmic Fragments were scattered across the void, forming the boundless Shattered Starry Sea.Immortal Domain Dao soldiers, mechanical gods, golden giants, wizard Dominators…An endless array of strange civilizations.Starry Sea Oddity, Genetic Potions, exoskeletal armors, Floating Land Origin…Treasures that could be found everywhere.Spectral Shuttle, Spectral Airship, Spectral Warship, Escort Ships, Battleships, Star-Annihilating Starships, hyperdimensional mother ships…The clearly stratified Xinhuo warships.Song Chi held a Zhu Tian Ruins Market in his hand and engaged in interstellar trade with the countless peoples of the Starry Sea.What? Titanium Crystals are worthless in your Star Domain? I’ll take them all, damn it, this is a strategic resource!You call this a chunk of iron? This is Mixed Elemental Copper, the ultimate Enhancement resource!Ordinary ship cannon? Isn’t this a golden Star-Annihilating Cannon? Quick… I’ll buy it!…Stretching across the stars, starting from the flame of human civilization.