Devil Slave (Satan system) - Chapter 902 To Wipe a god’s face with...

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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Who says I am a worthless student, the pretty Alliance Leader is within my grasp.

Who says I am a single man, a harem of huge numbers waits upon me.

Watch how the strongest senior high school student in history, Li Fan, turns over the city upside down, becoming a hero unparalleled under the heavens!

My wife is the martial alliance leader, and I am the strongest senior high school student, Li Fan! I’m waiting for all of you to drop in to discuss the rules of Jianghu!

- Description from Novelupdates

The Venerable Xiang Yu, an eccentric villainous half-blood demon King was infamous in both the demon and human realm for being a cold-blooded ruthless devil that could kill with no remorse.Demons and humans feared him, cultivators wanted him as a trophy and the immortals saw him as a thorn in their side.The only reason he didn't get smote by the Heavenly King's searing lightning of divine wrath that could kill all mortals and immortals was because he kept the deadliest demons in check maintaining peace between the two realms.Despite his reputation, he had a small cult following in the human realm. They took him as their deity for his selfless acts of benevolence.Such rare selfless acts led him to rescue the fallen immortal Han Xin. But his benevolence became his downfall. Condemned to death, he faced an impossible choice: serve the Heavenly King or die with no marked grave.Xiang Yu: Hahaha... death isn't so bad after all.Heavenly King: You...Han Xin: Wife, you can't escape even in death. At least when you are alive you have a chance to run.Xiang Yu: QAQ...

Zhong Yuhuan had transmigrated into a book and became the female supporting character who was destined to die an untimely and tragic death. Coincidentally, her family adopted two boys — the male lead and the villain of the book! The male lead of the book would become a superstar in the show business and the villain a super successful and powerful businessman. Zhong Yuhuan thus began her life of raising the male lead and the villain while faceslapping other scums. She would grow up quickly and live the life of the rich and powerful Mary Sue!