Kihachirō Uemura

A former gymnast, Aikawa Maki has turned her skills to a different way of life—street fighting. The only thing that truly makes her feel alive is violence. With amazing power and grace, she fights opponent after opponent, repeatedly demonstrating the gymnastic talent that earns her her nom de guerre, "Airmaster."

A re-telling of the Alabaster Arc from One Piece (TV). Luffy and his crew come to rescue a land in the midst of a civil war, due to a powerful devil fruit user.