I created my own system - Chapter 244 Unknown pressure

A bittersweet drama: As long as the heroine forgives her kindly and kindly, pays without regrets, and gives up again and again until the bad guys who bully her are old and unable to act, she will get a happy ending.

When Mercury is dressed as the heroine of each bitterness drama…forbearance? Pooh.

Terrible heroine, change her life online.

Content tags: Time travel, face slap, fast wear, cool text
Search keywords: protagonist: mercury ┃ supporting role: many ┃ others: fast wear, cool text

- Description from novelbuddy

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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The peerless Demon Lord had been reborn. He used a dragon blade to sweep away powerful enemies from every direction and traversed the entire city, attracting countless beauties.

Xiao in his first life didn’t have the talent to reach the top and during his life he was killed by one of the heavenly Opposers, then he was born again in the second world where he again faced problems, after surviving and dying in the second world he was again brought back to as a child in his first life, this time Xiao swore to lay low, he would use his future knowledge to get cosy with the characters that would become strong in the future, he would lay low and try to become an immortal while fulfilling his desires but how did things get so bad??

Reincarnated Empress: Xiao's the only man in my life, he's the one who caused my ambition to bring down the heavenly court to dust!!

The Forsaken Heavenly Beast: Brother Xiao's the one who saved my life and gave me meaning, he's the one who gave me the courage to go against the heavenly court!!!

Succesor Of The Medicine King: Brother Xiao's my role model, he's a true man!!, he's the only one worthy to rule the heavens, he's our heavely opposer's leader, the opposing Emperor!!

The True Mc: Me and Xiao might not be related by blood but I am more than willing to lay my life down for him!!, he's the reason that the group heavenly opposer's even exist and we will bring down those stuck up rulers of the heaven!!

Xiao: “......”