MTL - Dragon Dragon Dragon - v4 Chapter 250 So it is

Elias' world was destroyed right in front of his eyes. Only after his transmigration did he learn that there was nothing natural about its destruction.“Mother, I passed my Practical Exams! I was so lucky to get a weak world like Earth for my practicals! It only took a few months!”The person who destroyed his world was the eldest son of the family he was transmigrated to, the Ashborns.He could never forget his sister's cries when she suffered and eventually died from the virus that wreaked havoc in his world. And here he was, the person responsible, laughing.Elias wanted to repay the favor. He wanted to bring absolute ruination to these people. And for that, he had to play by their rules. He had to become the Architect of an Apocalypse…

Kim Hyun Woo lived the life of the wealthy thanks to his parents. But one day, he received a phone call informing him of a traffic accident which involved his parents. His father had died and his mother was hospitalized in critical condition. The normal life he once knew, collapsed…

They sold their house, cancelled various insurance plans, and moved to a one room apartment. And after a few years, Hyun Woo spends four to six hours tending to his mother and worked to pay for her medical bills.

One day, one of his Instructors recommended him for position in a company called Global Exos, who made an announcement of making history with the newest technological invention.

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

When the rifts between worlds opened, countless monsters flooded through, engulfing human cities and plunging the world into chaos. Faced with this apocalyptic crisis, humanity was forced into a new era where every individual had to choose a profession. Nations now compete to cultivate elite practitioners, striving for supremacy in the rankings of alternate world conquests.But as the world teeters on the brink, the first and greatest champion awakens after a million years of slumber—armed with untold buff amassed from his millennia of AFK grinding.The bosses of the otherworld tremble in fear. Global T0-ranked powerhouses bow down, offering their loyalty...[Disclaimer: Here countries fight against each other and this is adapted into a Manhua.][Schedule: 2 Chapters/Day]