MTL - The Rise of Otaku - Chapter 544 Television festival

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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One day, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.

Opening her eyes, she becomes the eldest daughter of the Great General of Liuyin Kingdom.She is the modern girl that transmigrated into a world that only respects the strong.Bullied by her cousins...Broken engagement...She did not care about all of that.Her motto is inspired by one of her favourite anime, Hyouka: “If I don't have to do it, I won't. If I have to do it, I'll make it quick.”“You already come into this Lord's hug. Don't you dare to run?” A Lord threatens her.“Do you think I'm scared of you? You can keep dreaming.” She spoke back.She just wants to have a peaceful life, however, can she has it?

After the disaster, there wasn't enough food, so I used my superpower to farm, striving together with my childhood friend for a better life.