The Hidden Dungeon Only I Can Enter - Chapter 5

Once upon a time, the Devil fell in love with one of the King’s many wives. One night he went to her room disguised as her husband and made love to her. She got pregnant with his child. Knowing this The King ordered her execution believing his wife cheated on him, but then the Devil appeared to the king making him a deal. In exchange for great power for his Kingdom, the King will let his wife Sire The Devil’s Child. The King who was greedy for power agrees to the deal and his Kingdom becomes one of the most powerful Kingdoms and the Devil’s Child, the seventh Prince of the Kingdom.

In a world where human and monsters relied on mystical fruits and their inner power to fight for dominance, a lost soul was thrown, given the powers from all the other worlds he’s known. But there was a catch; he had no control over what power he would get! With knowledge beyond that of most, he sails his path to the top of the one piece world!

Reborn into the world of Yugioh, it's natural if my goal is to become the best duelist!

Drowned, betrayed, and humiliated—Brandon’s life ended in the most pathetic way possible. But when he opened his eyes again, he was no longer Brandon.Reborn as Noah Weaverheart—in a novel he had read—the spoiled yet talentless son of a duchess, he quickly realizes a cruel truth: he’s nothing more than a stepping stone, fated to die in the first 30 chapters of this world’s story.But fate isn’t set in stone.Because he now has the Sovereign Bond System, a power that allows him to share everything from the women he bonds with—but at 10,000 times the quality.—[Ding! You have bonded with Neko Neko.][Ding! You have shared the affinity and talent of Neko Neko.][Ding! You have obtained the affinity: Ice (SSS rank) and the talent: Sovereign of Ice (SSS rank).]Noah’s lips curled into a knowing smirk.If this world wanted him to be a stepping stone, then he’d crush the so-called protagonist, steal his harem, and rewrite destiny itself.