Laboon is a whale the Straw Hat Crew encounter immediately after entering the Grand Line. He is native to West Blue and at the top of both the size and friendliness scale. He awaits his old pirate's friends for 50 years believing his words, "I will be back." Luffy promised Laboon that he would return to see him, under the guise of wanting a rematch. As a sign of the promise of the future rematch, Luffy painted the Straw Hat Jolly Roger on Laboon's head to prevent him from hitting his head towards mountain any further.