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

Mark stared at the dead body for a brief amount of time in silence. He couldn't understand why someone would shoot themselves just because they were discovered.

Grabbing his chin, he fell into thoughts, "The fact that a spy is specifically hiding here means either he should be here for me or there's some secret treasure here.

But, this guy committed suicide, which means he doesn't want his intentions to be found out. And his clothes aren't in proper condition. The armor is just made of leather and isn't even a graded one. Why would this person hide here in the first place? Ah, I forgot about it. Let's see who this man is and see if I can find something about him."

Mark proceeded to use Sage's eye to inspect the dead body.

In an instant, all the information appeared on the holographic screen and Mark furrowed his brows after reading the description.

Kunyu bandits (part-1)