Re-Birth Of A Genius. Creator/Destroyer - Chapter 2423: Change in Strategy

They took his name, stole his life, and fed on his pain. But they made one mistake—they let him live.Betrayed by his own blood and sold into slavery, Prince Oliver Von Rich lost everything—his title, his freedom, and his future. For years, his captors in the Somaran Empire bled him dry, using his Royal bloodline as fuel for their Aether.But when they sought King Solomon’s Staff—a relic said to grant any wish—Oliver rebelled. Left beaten and dying, his blood soaked the ancient artifact… and awakened it.Dragged back in time to the eve of his kingdom’s fall, Oliver is no longer a helpless prince. With the scars of his past and knowledge of what’s to come, he’ll rewrite fate—even if it means becoming a monster.To destroy the empire that broke him, Oliver must embrace the cursed power of the most vile demon known to man.

His Royal Highness the King of Han, who was afraid of the dark and ghosts and loved to cry, has always been the good baby of the princess.
Until one day, His Royal Highness the King of Han found a book in the bookstore…
Picture book?
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Search keyword: Protagonist: King of Han, Princess of Han

- Description from novelbuddy

Wrongly imprisoned for a crime she did not commit, Ye Qiao was freed from the iron gates that locked her away for seven years with nowhere to go, no one to see, and nothing to move on to following the passing of her husband, who she had never appreciated. The man was part of the Special Forces and had been killed during a mission.

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Enigmatic hands, spectral frame, and one cunning strike just like the swing of the Grim Reaper. The Supreme Assassin takes on the mystical world, and how his legendary tales sets off, progressively ascending the altar to becoming the best.

- Description from Novelupdates