Reborn: I Found The Wrong Brother - Prolong

Jiang Pengji got something called the Court Intrigue Stream System.
System: “Your goal is to become the most prestigious woman in the kingdom (the Queen)!”
Jiang Pengji: “Okay, System. No problem!”
Years later, she met the target by becoming the most prestigious woman (the Empress).
Jiang Pengji: “Well done, no?”

- Description from Novelupdates

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of powerful enemies by depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

Wanting to live in the Devil’s world is hard! Wanting to live in the Devil’s world as a human is harder! Wanting a human to be the devil’s son-in-law is hardest!

Let us see how a small otaku uses power and strategy step by step starting from an ordinary human to writing a legend as the devil’s greatest son-in-law.

In the past, there was a small cannon fodder who wholeheartedly dedicated herself to the medicinal path.

Only after dying once did she learned that even if she was brilliant, she could only be an insignificant side character used to emphasize the female lead’s limelight. Any relationship with the male lead and other supporting male characters would bring her bad luck.

When going out to collect some medicinal herbs in Qingfeng Valley, she kindly rescued a male side character. The man woke up and saw the female lead and became eternally grateful to her instead. He thought that the monster that hurt him was brought by the small cannon fodder so she was punished.

The cycle repeated and eventually everyone she saved blindly loved the righteous female lead. Ultimately she was killed by one of the men who was entangled with the female lead.

……

So after her rebirth, she began to firmly adhere to the principle of ‘pay me first, then I’ll cure you’.

Male cannon fodders who love the female lead, charge them triple fee!

Male side characters who ambiguously entangled with the female lead, charge them 10 times!

Male lead, the most important one, charged him 100 times!

She single heartedly insisted on using money to distance herself from those men and drew a clear boundary between them. But her ability was too high, that the male lead and side characters from all over the world always came to her for help…

She finally became the richest person in cultivation world!

The apocalypse has arrived, unleashing monsters across the globe.Jeremy, a high school student with a past life as a mercenary, awakens to an SSS-tier ability known as “The Eye of Omniscience.” This power allows him to perceive hidden cues invisible to others.[There's a silver treasure chest in the room to the left. Opening the chest with your foot guarantees a 100% chance to obtain a silver-grade item!][There's a hidden boss in the girls' bathroom. Defeating it with a sanitary pad will surely drop a rare skill scroll!][Slapping the job-change statue 99 times during your job change will unlock the hidden class “God Desecrator”!]While the rest of humanity is still living in fear, Jeremy has already obtained various god-level rewards thanks to his Eye of Omniscience.While others are still figuring out how to survive the apocalypse, Jeremy has already reached the pinnacle of humanity, confronting the gods themselves!