Loser System and Berserker Me - Chapter 160: I’m Just Taking a Detour

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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After traveling through Hokage, Mo Yu originally planned to live in peace, but he was bound by the editing system, so the world changed drastically, and the whole ninja world was in chaos!

[Top Ten Sao Operation Inventory]

[Ten mouth escape scene]

[Ten scenes of pretense and slap in the face]

…

Danzo: “In one battle, I made four lists?”

Payne: “What? Naruto said I was dead?”

Sakura: “It’s so miserable! Pretending to be aggressive was slapped in the face list, and Sasuke took care of it!”

Uchiha Madara: “The strongest ninjutsu list, the first place is not reincarnation eyes?”

- Description from novelbuddy

The old man pointed to the flower-like woman and said, “Call her mother from now on.” He then pointed to a flower-bud-like girl and said, “This is your sister.”

My younger sister was not cute.

She was arrogant, taciturn and weird, but she knew how to please our parents.

She was two-faced and deceitful, but it seemed like she only treated me that way.

I cared for her, tried to please her as much as I can, but she still disliked me.

Until one day, I found out her secret, our relationship began to get a little bit weird…

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?