Toaru Majutsu no Index: New Testament - Volume 16, Chapter 3: Mutual Request for Assistance between Enemies - Double_Enemy.

This is the story of a modern sailor who was accidentally reborn as a soldier of the Brazilian Expeditionary Force, and finally became the largest plutocratic family in Brazil by virtue of his foresight.

- Description from novelbuddy

Alpha Chen Junhua, as a representative figure of the Conservative Party, was listed as the top three unmarried characters in the Empire by Imperial Omega. 

At the same time, due to Chen Junhua’s other identity – the imperial marshal, he was secretly liked by many people in private. 

But no matter what others think of Chen Junhua, it has nothing to do with him, because Chen Junhua has passed through! ! ! 

—————————

He also entered a Zerg society, became a male worm sought after by worms, and also had an unmarried female worm, Chen Junhua said…Thank you, no appointment. 

When Chen Junhua was about to break off the marriage at the fiancee’s house, he saw the fiancee who was bullied by the worm. Looking at the swarthy eyes of the fiancee, Chen Junhua’s conscience ached… Okay, anyway, whoever you marry is a marriage, just you . 

After marriage, Chen Junhua… Really fragrant, military female or something is really the best. 

—————————

Strong, 1V1, the former Alpha is now Zerg attack × Zerg army female is tough

Content tags: strong love, a match made in heaven, interstellar

Search keywords: Protagonist: Chen Junhua, An ┃ Supporting role: ┃ Others:

- Description from novelbuddy

She is a top-class spy, a poison specialist, but also a young and cute girl with a sinister temperament. In spite of her sweet and innocent appearance, she can complete any tasks without the slightest hesitation. One day because of an incomplete black magic, she was sent into the body of a girl who was deemed as a good-for-nothing. What kind of change will she bring to this continent?

A Prince said with bitter hatred, “I thought she was weak and easily bullied, therefore I broke off the engagement. I really didn’t expect she is such a shrewd girl. I made an error of judgment.”

The Crown Prince deeply sighed, “She is such a sexy evildoer! Obviously, she has a frail and tender body, but I am not able to overwhelm her…”

Finally, an Emperor hit the nail on the head, “She is just a bit two-faced!”

She answered, “You’re just a big pervert!”

The Emperor carried her into the room and said, “You are predestined to be mine! A two-faced girl and a pervert are a perfect match, right?!”

- Description from Novelupdates

I became the wife of a man with a lover. Well then, I guess I have to protect his chastity?

“You can sleep on the floor then.”

“What?” His eyes said he didn’t want to.

Well, yeah. The floor was hard. Then it couldn’t be helped.

“I’ll just hold your hand and sleep. You trust me, right?”

But, how come the bed broke on my first night with my husband?

*

Aristine, a princess confined out of the Emperor’s sight.

When in reality, she was the owner of the [Monarch’s Sight], able to see the future, past, and present.

She, who became the sacrifice for a political marriage, was married off to a terrifying barbarian…

“The most precious things should naturally be given to my bride.”

But her husband, whose monstrosity she prepared for, was way too normal.

However, he belonged to someone else.

‘I’ll go make money then.’

She might as well make the goldfields her own.

*

Can Aristine really achieve her dream of living freely on a pile of money?

Or will she end up killing two birds with one stone?