Akuyaku Reijou ni Nanka Narimasen. Watashi wa『Futsuu』no Koushaku Reijou desu! - Chapter 180.1: The unbelievable things.

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!

By coincidence, Li Yunmu found a super machine from humanity’s age of darkness. From that point onwards, his ordinary life would never be the same! Aptitude? Innate talent? What are these? Could they be eaten?

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Charlie Jiang doesn’t really care about the marriage with Mandy Song. During the three years of their marriage, he doesn’t even try to understand her. He has always only listened to Vivi Qiao’s one-sided words and condemns Mandy Song of crimes she never committed. Has it never occurred to him that when there is a crisis in Jiang family, Mandy Song agrees to their marriage without slightest hesitation, for what? Charlie Jiang never cares for Mandy Song, so he never knows that for such a long time he used to be her world, her whole world.

But even if he knows, what difference would that make?

I, Mandy Song, is simply not the one he cherishes in heart.

For Charlie, only Vivi matters the whole world to him.

How pathetic!

- Description from Novelupdates