Chinjao

Chinjao, also known as "Don Chinjao" and "Chinjao the Drill", is a former pirate in the series *One Piece*, the 12th leader of the Happo Navy, and a retired member of the Chinjao Family. He was a powerful pirate with a bounty exceeding 500 million Berries. Chinjao was renowned for his distinctive drill-shaped head, which he used to execute devastating headbutt attacks. In the past, he clashed with Vice Admiral Garp, resulting in his head being dented, which robbed him of his powerful headbutts and the ability to access his buried treasure. During the Dressrosa Arc, he participated in the Corrida Colosseum tournament to win the Mera Mera no Mi, where he also confronted Luffy. However, during their battle, his head was unexpectedly restored, regaining his past strength. Afterwards, he reconciled with Luffy and became an ally in the fight against the Donquixote Family. Chinjao is very devoted to his family and the Happo Navy, despite his volatile nature, he is very loyal and values honor. He shares a close bond with his grandsons, Sai and Boo, and ultimately passes his position as head of the Happo Navy to Sai.