* Enjoy this episode of One Piece 531 entitled "Ryugu Ryugu Palace! Brought by the Shark They Saved". Mermaids managed to open the barrel. Caribou is out and vengeful. Strawhats arrive at Ryugu Palace. King Neptunes gets scolded and Luffy stumbles on Mermaid Princess Shirahoshi. See us in our Anime Forum for discussions. Full review of this One Piece episode 531 will be posted later.
A flashback shows Ishilly and her friends being captured by Caribou. And then it ended with Caribou being thankful to the Straw Hats for bringing him to the Treasure Island. In the present time, Madam Shyarly is talking to akatsukiaboshi and his brothers about her prediction. akatsukiaboshi is now convinced that they must capture the Straw Hats and ordered the Fishman islanders to look for them. Meanwhile, the Straw Hat pirates are on their way to the banquet, together with King Neptune.
King Neptune informs the Straw Hats that Zoro has already arrived at the Ryugu Palace and has rudely asked for sake so he can relax while waiting for the crew. Luffy looks for Franky and Robin, but Nami tells him that Franky is on the search of the relatives of Tom, his old shipwright master. Robin is going to look for any information about the Fishman Island's history, specifically the Poneglyphs. They have finally arrived at the palace, and everyone was amazed by its beauty. As they enter, the guards gave them a warm welcome. However, one of the ministers scolded the King for not taking an escort with him. The Straw Hats are surprised to see the King in that kind of situation.
Neptune asks if Princess Shirahoshi is okay, but the two ministers tell him that something happened again. It made the King furious and tells them that they must always keep the Princess secured. The Minister of the Left advises the King that his son has something to tell him, then akatsukiaboshi enters the room. Luffy is distracted by the good smell of food and followed it. He find himself standing in front of a large door but a huge guard is watching it. But Luffy successfully avoided the guard and entered the dark room. Inside the dark room, he uses his nose to sense the location of the food. He bumps into something, and looks like it's just a coral. He just ignored it and thinks that corals are everywhere on Fishman Island. He started to jump at the coral and enjoyed bouncing.
Suddenly, the light is turned on and someone talks. Luffy was very surprised and fall off from the "coral" which turns out to be the Mermaid Princess. The princess is really huge and she starts to ask Luffy what he's doing on her body. Shirahoshi thought that he came to kill her, so she attempted to threaten Luffy. However the Princess cries because she's really scared and Luffy avoided the large drops of tears.