Sentoumaru

Sentomaru is a character from One Piece, initially serving as the bodyguard of scientist Dr. Vegapunk and later becoming the captain of the Marine Science Unit. He is a large, muscular man with a scar on his face, often seen wearing an apron with a 'heaven' symbol. Sentomaru is renowned for his defensive abilities and possesses powerful Armament Haki, which he uses to enhance his palm strikes. He is somewhat boastful, claiming to have the strongest defense in the world, yet also has a contradictory nature. Although initially affiliated with the Marines, he eventually betrays them in the Egghead Island incident, siding with Vegapunk and the Straw Hat Pirates. Sentomaru has a close relationship with Marine Admiral Kizaru, whom he calls 'Uncle,' but ultimately opposes him to protect Vegapunk. He is deeply loyal to Vegapunk, considering him his benefactor, and mourns his death. Sentomaru is also in charge of the Pacifista and has a complex understanding and respect for pirates like Luffy. He is a multifaceted character whose development and choices add depth to the story.