MTL - I’m Fighting Back In the Ninja World with Spells - Chapter 490 underground secret base

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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When I just started college, my mobile phone navigation can automatically find treasure!

Complete the treasure hunt navigation, and you can also get rich rewards!

“92 kilograms of stolen money were detected, complete the treasure hunt navigation, and reward a set of 100 million Zhongtian lake view villas!”

“It is detected that the big star Xia Qiu is about to be in distress, complete the opportunity navigation, and reward 100 million in cash!”

“A piece of 10 jin*head gold is detected, complete the treasure hunt and navigation, and reward Yuanfang Wenchuang with a value of 600 million yuan to purchase 60% of the shares!”

“…”

Looking at the mobile phone’s continuous automatic treasure hunt and the rich rewards after completing the treasure hunt navigation, Ye Feng said:

“From today onwards, the four famous words of the four great masters will come out of my mouth!

- Description from novelbuddy

Shaymon, the man who has achieved the apex of dark magic, is framed as being a Demon King and is killed.

The destitute young miss of the Ling family was weak, had lowly qualifications, was ugly and frequently bullied. In the end, she was pushed into the freezing river by her so-called love rival. However, when she opened her eyes once again, her gaze was cold yet captivating! Everything had changed drastically! When her ugly looks faded, she became a peerless beauty. When she displayed her graceful bearing and talent, it was blinding and earth-shattering!