He is the ship doctor of One Piece, and his name is Kulowcass. Today, Kulowcass still watches the lighthouse of Gemini every day and leisurely reads newspapers. His other hobby is painting, drawing a huge sky on Bula's body.

Resume: Fifty years ago, I promised Captain Fancy Yankee of Lombardy Pirates to take care of Little Rabb. But twenty-six years ago, I met a pirate group led by Gol D. Roger and invited me to be a ship doctor. So I temporarily left Bula and boarded Roger's pirate ship to treat Gol D. Roger, so as to ensure that he could complete the journey of the great waterway. As Kulowcass also wanted to know the whereabouts of Lombardy pirates in the English Channel, he agreed to board the ship. Later, he participated in the "Battle of Aite Wall" 25 years ago (comic 0, the prequel of OVA episode 23 "The World of the Strong"). After Roger disbanded the pirates, Kulowcass returned to Gemini and told Rab about the disappearance of the pirates. However, Bula still didn't listen to the advice and kept crashing into the red soil continent, wanting to see his master ... until Luffy and his party arrived, protected Bula and reached a new agreement with Bula, and Bula calmed down.