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

An hour ago, Sylvandrial Dominion;

In front of the altar located deep inside the forest, the Princess was seen sitting in the middle of a circle that resembled the pupil of an eye. She had her palms on her knees but facing the sky.

With a glowing dagger in her hands, the High Priestess crouched before her and said, "Your Highness, if you are not up for it, then, you don't need to do this. It's not worth risking your life."

The High Priestess' expression was quite grave as if she doesn't approve of this arrangement but is helpless about it.

However, the Elven Princess appeared to be quite determined. She replied in a firm tone, "No, as the only living royalty, it is my responsibility to do this. If I could reduce the burden on your soul in this ritual, I would gladly risk my life. Do it now."

Mark abducts the High Priestess