Gin

Gin the "Man-Demon" is a pirate and the Combat Commander (戦闘総隊長, Sentō sōtaichō?) of the Krieg Pirates. He is initially introduced as a mere combatant of Krieg before his actual rank and abilities are made clear. Due to his actions, he can be considered the secondary antagonist of the Baratie Arc, although he eventually ends up aiding Monkey D. Luffy and Sanji.