Canon Divergence

The Queen of Blades, Rika dies, hoping for a better life for the remaining survivers leaving a ruined world and she regrets not living a long happy and full life before her death. She awakes as a newborn in a strange but peaceful environment, in the same world of the novel Dreaming Kiss. Rika is reborn as Ulrika Vincent and realizes that she's got a scumbag of a Prince to cut out of her new life. ...

Lu Chen was supposed to die.
The empire remembers him as the cruel noble destined for execution. But now, a struggling writer has awakened in his body and the rules have changed.
[Sin System Activated.]
To survive, Lu Chen must feed on the envy, greed, lust, wrath, pride, sloth, and gluttony of those around him. Every sinful desire they feel fuels his power. But if he dares to be good… the system...

Princess Penelope would rather die than marry the feared Crimson Dragon King.

On the night before the wedding, she throws herself to her death.

At that exact moment, in another world, Joseline Hernandez falls from the rooftop of her school building after someone pushes her. Betrayed and exhausted from a life spent being blamed for her father's death, she dies with only one thought : revenge.
...

My family was born from the abyss, with ancient siren blood in our veins. Our nature demands that every so often, we must feed on a human heart.
So when Caius, playing the perfect lover, slid that spiked martini across the table, I didn't refuse.
The wedding ring he'd slipped off ten minutes ago still sat warm in his suit pocket. As he leaned closer, expensive pregnancy oil—the kind his wife slath...

I'm a siren. Every fifty years, I need to eat a heart. Not just any heart—it has to be rotten to the core. The more evil, the better it feeds.
So when Arthur Pendleton, billionaire marine philanthropist and secret trafficking kingpin, spotted a helpless blind girl sitting alone at his charity gala, he thought he'd hit the jackpot.
He took me to his cliffside villa. Cooked me dinner. Drugged my mil...