After the Divorce, I Could Hear the Voice of the Future - Chapter 319 - 318: Old Friends Reunite

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

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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What if you were transported to a fantasy world with no special abilities, no OP weapons and no status screen to boost your stats? Never mind finding the dragon’s treasure or defeating the Demon Lord, you only need to worry about one thing—how to stay alive.A group of young Brits wake up in a strange, fantastical land with creatures from myth and legend. They are given archaic weapons they don't know how to use and told to do their best.Convinced it has to be some kind of virtual reality RPG, all the people summoned form parties and set off on their adventures, leaving behind the people nobody wants in their group.Story of my life, thinks Colin.