Reborn in the 1970s — Married a Proud Rough Man - Chapter 153 - 65: Jie Jingchen, I Won

An RPG gamer who played the realistic VRMMORPG ‘The Amber Sword’ for years, finds himself teleported to a parallel world that resembled the game greatly. He takes on the body of an NPC who was fated to die, and with the feelings of the dying NPC and his own heartrending events in the game, he sets out to change the fate of a kingdom that was doomed to tragedy.

- Description from novelupdates

Mark is a genius military weapon designer who was kidnapped by a mafia gang after refusing to work for them.
They forced him to design unique weapons for five years, until one day he successfully escaped only to get shot by his trusted comrades.
*Ding! You awakened a weapon system.
When he opened his eyes, he was in a different body and in a different world.
"You want to kill a wild boar without being detected? Forget about bow and arrow. Here, I present you this sniper rifle."
"You want to kill a horde of goblins from the sky? Forget about those flying carpets and brooms. Here, I present you the fighter jet."
"You want to kill a dragon? Forget about taking the help of the S-class adventure team. Here, I present you a nuclear bomb."
Join Mark Spencer/ Lu Zhen as he brings the whole world to its knees with the help of his weapon system.
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Note: Author isn't born in an English-speaking nation and has no editor either. So, please be understanding if there are any grammatical errors.
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Born with amazing talent and mastery of the sword, at age 13 he awakened his memory about the world thus setting out his own journey and create a world that is for himself and his crew onlyAt the age of seventeen, he went to sea, joined the Rocks Pirates, participated in the Battle of God Valley, plundered the treasures of the Celestial Dragons, formed his own pirate group, competed for the throne of the Four Emperors in the New World, and became the world's number one swordsman.The most powerful attack and the most powerful defense are gathered in one person, and finally became the strongest in the world.Before the war on the top, he helped Whitebeard restore his peak strength. When Whitebeard attracted the attention of the whole world, Li Yuan led his pirate group to attack the Celestial Dragon Holy Land Mary Geoise...

“You want to steal my genes then leave?” He grabbed her and tried to force her to hand over the child that was born three years ago.