One Piece: My Son Is Sengoku

Mu Yang traveled to the world of pirates, and a ray of purple energy made him extremely powerful.

After accidentally saving Sengoku in a battle, Sengoku recognized him as his father!

After a confrontation with the devil in Devil Fruit, Mu Yang froze himself and fell into a deep sleep at the bottom of the sea.

After these decades, Mu Yang returns from the bottom of the sea!

The situation changes, and when the king returns again, everyone must surrender!