One Piece: King of the World - Chapter 390: Saint Claudius Has Gone Mad!!!

The doomsday fell upon the earth when a dragon coffin sealed under a snow mountain for ages shifted, and the civilization of gods and devils began. The whole universe turned into a fantastic new world where everyone could rise to the top through cultivation. A lucky young boy seized the opportunity, and started his journey to be an overlord in cultivation.

- Description from Novelupdates

In the waves of steam and machinery, who could achieve extraordinary? In the fogs of history and darkness, who was whispering? I woke up from the realm of mysteries and opened my eyes to the world.

Firearms, cannons, battleships, airships, and difference machines. Potions, divination, curses, hanged-man, and sealed artifacts… The lights shone brightly, yet the secrets of the world were never far away. This was a legend of the “Fool”.

- Description from novelupdates

The Phoenix Clan was once unmatched in power, revered and feared across the world. But when the greed of four great empires united, the clan was destroyed, forcing its survivors into hiding, saved only by the Phoenix’s final sacrifice. Its essence passed to an unborn child, Luis.Raised in a quiet village, Luis knows nothing of his heritage or the power hidden within him. As he trains to master his aura, mysterious signs begin to surface, hinting at the truth of his lineage. With enemies closing in, Luis must uncover the Phoenix’s legacy and embrace the power he never asked for.Their are 2 main power systemsAura: can be progressed through training, every human is capable of growing their aura stronger.Blessings: are powers given by creatures that rely on aura to be used and controlled. Blessings can only be obtained through mutual consent between creatures and humans. They can be passed through generations but their power diminished over generations.

In the world of Norse mythology, a human boy falls in love with Waltraute, the fourth Valkyrie sister. He wishes to marry her, but Waltraute gives him an impossible challenge to deter him.

Nevertheless, the boy is determined to carry out the dangerous task and to marry Waltraute afterwards.