Snowstar

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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Author's current works: War Online, My Soul Card is a Reaper
Author's other notable works:  The Last Slytherin, The Sharingan Hyuga
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You can also support the Author through Patreon or buy coffee on Ko-fi.com

https://www.patreon.com/snowstar

https://ko-fi.com/snowstar5061

Weapon seller in the world of magic

Around 02:45 A.M., Imperial Palace;

In the Emperor's chamber, Shang Fu was sleeping soundly. The wine glass and the opened jar of wine on the bedside table indicate that he drank before he went to sleep.

Or perhaps, he drank it to get some peaceful sleep. After all, the war in Western Yan is giving him a big headache. Adding on top of that, he found out that his enemies are supreme beings. Obviously, he needs some drink.

It was one of those repeated events where his sleep would be disturbed by the knocks at midnight.

He didn't hear it and continued to sleep while snoring heavily.

This time, someone banged on the door as if there was an urgent matter. There was no response from the Emperor.

At once, the door was smashed with brute force. It was opened, making a loud sound as they collided with the wall.

Shang Jiao has been abducted