The Black Book: Seven Deadly Sins - Chapter 37, The Page of Mirrors

Because I like to collect antiques, I was accidentally brought to a magical world by a crystal skull in my collection.

- Description from novelbuddy

Our protagonist, once a homeless child navigating the city's harsh realities, clawed his way towards a better life. He stole coins to buy knowledge. However, the prestigious university scholarship he craved was a rigged system, awarded to a politician's son who needed the name, not the education.Descends into a life of crime.After being forced to taint his pride his death is ordered with his own making the final blow.god “congratulations you're given a chance at a new life...”him “ why?”god “cause you had a tough life so im being generous... and making you reincarnate in a mana world...”him “ bullshit...”On the brink of oblivion, a dubious offer arrives – a second chance from a strange god. Haunted by the shadows of past 'generosity', Rei struggles with suspicion. Accepting means becoming a pawn, rejecting means eternal damnation. With no good options, Rei plays along, unaware his role thrusts him into a cosmic conflict.

Two years ago, Lin Chou Sui’s firefighter father sacrificed himself in a fire.

The last conversation between father and daughter ended in a big fight.

Lin Chou Sui woke up crying countless times in her dreams, wishing that if her dad could be reborn, she would obediently listen and never talk back.

Little did she expect that her dad would actually be reborn!

His soul possessed the body of Xiao Yan, the academic god of their high school.

…

Xiao Yan excelled in both character and academics. His total scores never dipped below 700. All the girls at their high school knew: getting into Tsinghua or Peking University was easy, getting close to Xiao Yan was difficult.

But Lin Chou Sui noticed that recently, the way Xiao Yan looked at her was very strange. His aloofness contained deep affection; his affection…was full of fatherly love?

So Lin Chou Sui’s daily life became:

Before exams, Xiao Yan would give her his notes to copy.

During her period, Xiao Yan would brew her red date tea and cook porridge.

Bad boys who blocked her path and harassed her would get kicked flying by Xiao Yan.

Lin Chou Sui was very touched. Other than her dad, no one had treated her this well.

…

On a hot afternoon, Xiao Yan sat with Lin Chou Sui on the stairwell to do homework, his gaze tender beyond words.

A light breeze blew by. The youth was about to lean in to kiss her.

Suddenly, a cold, icy male voice sounded in his mind:

“Young Xiao, may I ask what you intend to do with my daughter?”

Xiao Yan: ……

Xiao Yan crawled out from the mud. Beneath his cold and aloof appearance was a sinister and vindictive nature.

To climb from the lowliest dust to the summit out of reach, the path was filled with thorns. For this purpose he would stop at nothing, sparing no cost.

However, all the darkness and gloom in his life ended with that one strange encounter…

From then on, the skies cleared and his dead end led to new life.

A sinister genius boy meets a muddled Failure girl

This novel is also known as The Indomitable Master of Elixirs

She is the twenty-fourth century’s strongest immortal cultivator, but transferred into a world of magic where demons roamed rampant; a punching bag tyrannized and ostracized by her clan on one side while the scum of a man that is her fiancé humiliated, trampled her on the other side…

Want to ravage her? She laughs as she will soon teach them how to behave themselves!

Magic is amazing? Her Five Lightning’s Bombardment Talisman will turn you into ashes! Medication is very incredible? With one furnace of medicinal pills, useless can also become genius! A vigorous army of a million is very ferocious? With Scattering Beansprout Soldiers, all of you can slowly play!

Smilingly watching as those who court death act vilely without salvation. Those who submit to me prosper, those who oppose me, perish!

Only… For what reason does this Grandmaster whose face is as beautiful as a flower, when facing her, always “secretly casts passionate glances”?

A certain Grandmaster: “After sleeping for so long, now you don’t acknowledge”?

- Description from novelupdates