MTL - Comprehensive Manga: The Wandering Ninja World Started From Questioning Payne - Chapter 1 : Exam space

As a successful villainous BOSS, in addition to having ideas and aspirations, one must also keep in mind three points:First, grow sneakily, don't act rashly (once a villain acts rashly, they basically won't survive past three chapters).Second, you're not a good person, so be ruthless (becoming more evil will make you three times stronger, while redemption weakens you by seven times).Third, remember the two points above. The moment you forget them, your end is probably on its way.

The Soaring Dragon Continent is a world of summons, you can only become strong if you become a summoner! Yue Yang, an average high school boy, was suddenly transported into this world. When he woke up, he was greeted with a lot of worried faces and found out that he had assumed another person’s identity. Turns out he’s the good-for-nothing third son of the Yue Family, who had just recently drowned himself because of a failed engagement. Unlike the third son of the Yue Family who was useless in summoning, Yue Yang succeeded in making a contract with a summoning grimoire on his first try, even when the other guy failed for the past fifteen years. Others would have a headache making contracts with beasts afterwards, but countless beasts tried to gain favour with Yue Yang instead, acting like a good kid before him.

【sweet! Be sweet! Cool! Keep cool! 1V1+ Almighty! 】

[chronological text + rebirth + fool + ancient martial arts + metaphysics + magic doctor + farming + getting rich]

Qin Xi was reborn.

Reborn in 1983, he was cheaply married to a fool by the superb family, and accidentally inherited the mysterious medicine on the day of his rebirth.

Since then, the silver needle has crossed people and tricks, not only cured the fool husband, but also designed to kick the best family members, leading the husband’s family to prosper…

PS: It doesn’t look good, you hit me! …slightly can’t hit!

- Description from novelbuddy

Forced to be married, only to find out he's the one she loves the most.

Su Anan was forced by his father to marry a rumored ruthless CEO. She was resentful and scared because she didn't know what this cold man would do to her. But as they spent more and more time with each other after marriage, she found out that he was a gentle and considerate husband, so she naturally fell in love with him.

Her half-sister often bullied her, he came to help her revenge. Her biased father often beat her, he ruined her father's career with anger. Relying on his love, Su Anan revenged thousands of times to those who bullied her. After all, her CEO was the most powerful person in the city, and no one could bully her anymore.