Shadow Hack - Chapter 1: Mysterious Shadow

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

- Description from Novelupdates

Lee Jin Woo once lived a dismal life.
He lived pitifully on a day to day basis in his five-pyeon studio filled with mold.

Then, one day, he died in a sudden fire.

When he wakes up, he finds himself inside a novel.
But there’s just one issue…
He had become the novel’s villain!

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!

Lin Qian and Zheng PingQing, two people who have wanted to kill each other for many years, fell in love. After a lot of ups and downs, they finally married.

But they didn’t expect to get reborn together on the day of their wedding.

Back to the year when their feud was at it’s most intense.

The friends around them also saw each other as enemies.

Yet the two men in question were…in the eyes of the frightened relatives and friends of both sides; they began to scatter dog food.

Friends and relatives: ???

ermm…..this is awkward.

- Description from Novelupdates