The main plot of 'dororo' is about a young samurai named Hyakkimaru. His body parts were sacrificed by his father to demons in exchange for power. Dororo, a young thief, accompanies Hyakkimaru on his journey to reclaim his body parts from the demons.
It depends. Sometimes mangas continue their storylines after the anime adaptation ends, but for Dororo, it's not a straightforward yes or no. You'd have to check the latest updates from the creators or official sources.
The Dororo anime doesn't cover the whole manga. Some plotlines and details might be left out or adapted differently to fit the anime format and runtime.
We can conclude that the trailer for the second season of " Purple River " is about the story of Hideki Purple River becoming the Light King. The trailer showed the scene of Shue Shikawa stepping onto the throne step by step, and it indicated that the plot of this season would change towards the development of the Light King. The production progress of the second season had already been revealed. There were a total of 52 episodes and it was expected to air in the second half of next year. The exact release date had not been determined yet.