Toaru Majutsu no Index: New Testament - Volume 3, Chapter 3: The Target of the Scorching Lava. Case_to_War.

“Give me a bunch of adorable players, and I can easily overturn a parallel world!” - so said Reveno·Murphy·Le SenbulaPs:The titles owned by the honorable Murphy include but are not limited to counterfeit vampire, celebrated NPC role-play artist, multi-talented Dog Planner, the only savior of Transylvania, benefactor of the old continent, defender of the new continent, brave and loyal earl, irredeemable big-sister fanatic, spotless saint of the Blood race, Alpha of the Night's Guard, and so on (here ignoring the other 108 nicknames). He's indeed the homebody of the Fourth Cataclysm and the best old friend when you need to clean up a mess, thus all testers of “Real Different World,” please stand up when you see this line! Let us give Lord Murphy the highest respect!Murphy, ka-ka! Full marks!

Easily cowed and bullied, she was the useless, ugly woman with no talent in medical skills. Supported by millions, he was Tianning’s most respected duke with the power to move all under Heaven. On their wedding day the bridal sedan was carried to the front doors, but the Duke of Qin’s gates were shut tight.

They told her, ‘Come back tomorrow.’

All alone, she walked step-by-step full of pride through the duke’s doors. Little could they imagine, this unattractive good-for-nothing was a beautiful, genius doctor of poisons!

—

After transmigrating to the past, poisons expert Han Yunxi finds herself on the verge of being married off to the country’s second most powerful man, the Duke of Qin. Her future life seems set–except her husband is an unfeeling ice block, her in-laws think she’s a eyesore, the empress dowager wants to use her for her own goals, and poison-related plots abound.

Alone, the intelligent (and sensible) Yunxi must carve her own space from the intricate web of court intrigue and the jianghu, relying on her words, wits, and wisdom to survive. Adapt when necessary, use force when required; to survive and thrive is the name of the game to a prosperous life.

No matter what, she’ll prove her right to live!

- Description from novelupdates

Zhou Xu, an interstellar military counselor, was selected by the “will not die in peace” system, and as a result, even though he had a great fear of pain, began his journey as villain, forced to die a terrible death over and over again. Zhou Xu, after going through a hundred worlds and dying a hundred times, finally changed. He wanted to retaliate!

The invincible strongman who roams through the city by day and night, a supreme soldier king that moves across the urban landscape.