I, Rocks, The Black King Of Fusion Dragons Is Back!

Travel through the world of Pirates and become the master of the sea, Rocks.In the battle of the Valley of the Gods, due to the alliance of the enemy and the betrayal of his subordinates, he was helplessly defeated with hatred.When he was on the verge of death, he was saved by the system and fell into a deep sleep.Thirty-six years later, the Rocks awoke from his slumber.And also got the power of the black king *dhogg in the dragon clan!Thus, the former overlord of the sea returned to the sea with an even more terrifying attitude! Garp: The Rocks today are unbeatable! Sengoku: Naval Headquarters is vulnerable to the half-breed army created by Rocks! Kaido: The Four Emperors are a thing of the past, and now I am one of the four emperors of the Dragon Clan under Captain Rocks!Im: Rocks made me understand what despair is!"On the day I return to the world, all rebels will die!"(The introduction is weak, please read the text!)