MTL - Legend of Fu Yao - v2 Chapter 17 Must be

The story follows the protagonist, who wakes up one day to find himself in the body of Licht, a villain from a novel he was reading. Licht is a notorious villain who is known for his cruelty and ambition. However, the protagonist soon discovers that he has a natural talent for villainy. He quickly rises through the ranks of the evil organization and becomes a powerful force in the kingdom.

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

In Academy City, magic and science coexist in an unwavering power struggle. Toma Kamijo, an academically-challenged student in Academy City, wields the power of the Imagine Breaker in his right hand, which allows him to completely negate all supernatural powers – as well as his own luck. When he happens upon a mysterious nun named Index, whose mind has been implanted with the Index Librorum Prohibitorum – 103,000 ancient texts banned by the Church – Toma’s luck is about to be pushed to its limits when he finds himself in the middle of a war he never expected!

The wife is first, the country is second, and the husband is of lesser importance.

All of his life was spent riding a war horse and accomplishing meritorious military services. But what was the result? In the end, he was cast aside once he had served his purpose.

Out of selfishness, he had favored his consort and neglected his wife. Ultimately, the one who stood by his side was the wife that he had neglected for 10 years…

After being reborn, Jing Shao decided to repent and turn over a new leaf…

Standing outside the door while holding a pillow, Jing Shao gazed at the sky. He must first mend his relationship with his wife. Jing Shao formed a fist and knocked on the door, “Jun Qing, I know my wrongs, let me in!”

- Description from Novelupdates