The Fallen Hero Reincarnates as the Demon King's Son - Chapter 1: Prologue - New Chance

On an ordinary day, Lucius stumbled upon a strange, run-down shop. At first, he assumed it was abandoned—until he stepped inside.[You have entered the Universal Alchemy Store.][Congratulations! You are now the store’s owner.][Please craft your first potion.]Lucius blinked. 'What kind of joke is this?' But as if guided by an unseen force, he followed the instructions. Minutes later, his first creation was complete.[Love Potion: The drinker will fall in love with the first person they lay eyes on.]Lucius swallowed hard. 'Wait… does this actually work?'Before he could process it, the shop’s door swung open.Standing in the entrance was no ordinary customer—she was an elf. Long, pointed ears, mesmerizing green eyes, and a body sculpted by the gods. A visitor from another world.A dangerous thought crept into his mind.'Should I test it on her?'

This novel is also known as Phoenix Cry Firmament

The previous owner of Mu Ru Yue’s body had been poisoned. Because of this, her meridians were blocked, hindering her cultivation, which eventually led to her being known as trash. After being beaten to death, Mu Ru Yue, who had originally been a successor to a medicinal aristocratic family in Hua Xia, reincarnated into her new body.

They want to seal my path?

I will train to reach the peak of the realms!

They give me a foolish prince as my husband?

I can make do with him.

It would be easier for me to deal with him, rather than with other candidates who would be thrown at me in the future. I shall strive to become powerful enough that nobody will be able to mock or kill me!

- Description from novelupdates

[Crossover Fic]It was a silent night when a falling star broke through the sky of Westeros and collided in the Stormlands, alerting the Lords of the Realm, including King Jaehaerys Targaryen.Nobody knows where the star came from or what it brought, as the crater was empty when it cleared out. While Prince Aemon Targaryen, King Jaehaerys's son, dismissed it, the Conciliator was skeptical of the event.And his skepticism was not unwarranted, as nobody knew of the viciousness that was brought upon the Realm....No....the world.Drakken, a man from another world, rose from the star-dust and flames after the collision, lurking about the Realm with a terrifying power brought from where he came from. The people of the Realm were not ready for what was to come.

Lucien, a guy who has nothing but the desire to save his mother. To get strong enough, he makes a contract with the demon of L.u.s.t. And now, only by making a great harem, will he gain the power to protect those dear to him.