MTL - What to Do When I Become a Koi and Fall into the Male God’s Bathtub - Chapter 158 Extra thirteen

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 notorious firearms crime lord Chen Zhang An a.k.a Old Fox was placed under house arrest by the very successor he groomed.

After receiving his terminal illness diagnosis, Chu Xun could finally let go of everything. The most important thing of being alive is after all, one’s own happiness.

Dumping a jerk, getting back on his retarded colleagues, firing his dumbass boss, staying in a luxurious house, enjoying a feast and bedding a young, energetic and handsome guy—Chu Xun very coolly did what he didn’t dare to do in the past!

All his savings were spent and as he laid down waiting for his death, the doctor apologetically told him, “I’m so sorry, we misdiagnosed.”

“…” Chu Xun felt faint.

He did another checkup and thought, he did feel unwell recently though?

The doctor looked grim.

Chu Xun’s heart skipped a beat. “Don’t tell me it wasn’t a misdiagnosis after all. Am I sick?”

Doctor: “You do not have a terminal illness, but you are… You are pregnant.”

Chu Xun: “???” Ermm, he’s a guy?

And later, the child’s father, that young, energetic and handsome man, who also happened to be a 26-year-old billionaire, Lin Yanchen, appeared and handed out a marriage certificate already signed by him. “I’ll take responsibility. Let’s get married.”

Chu Xun only realised now that his 30-years-late love life, as though blooming blossoms, was flooding in.

- Description from Novelupdates

Transmigrated in erotic game and having a lot of fun. A lot of R-18 chapter.