Isekai Maou to Shoukan Shoujo no Dorei Majutsu - Volume 1 Chapter 1.04

Everyone in the City of Jing thinks that bestowment of marriage between Xian Junwang and the daughter of the Yi’an Marquis House is to insert a fresh flower into manure.

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.

Every overbearing president will always have a coquettish, pure, or lively white moonlight in their hearts. They are the vicious female partners in the novel, the stepping stones of the heroine, and the tool to promote the feelings of the hero and heroine. In the end, because of jealousy, run-down and decay she became a coquettish bit*h that everyone hated. However, one day-after Su Luó , who is unreasonable, indifferent and calm came… the domineering president of every world would be desperate, heartbroken, and desperate to make a living. Love is like poison, making people crazy and go crazy..

- Description from Novelupdates

Luo Zheng is at the bottom of the Luo Clan hierarchy, despite his family being the founders of a power refining technique that could instantly defeat any opponent.

One night, enraged by unfair treatment from a family steward, Luo Zheng burns the family records. In doing so, the hidden magic in the book engulfs him and Luo Zheng becomes a new skilled fighter. Fleeing his home and despicable clan, Luo Zheng must learn to harness his powers to rescue his younger sister while his own cousins are on his pursuit.

- Description from Novelupdates