The Navy HQ Fleet Admiral. His real name is Sakazuki. A power user who ate the Mag-Mag Fruit, he can turn his entire body into magma. He isn't afraid to sacrifice allies for the sake of completing his duty. After Sengoku quit as Fleet Admiral, Akainu fought Aokiji for the post and emerged victorious. Appointed the new Fleet Admiral, he now works to enhance the Navy HQ.
Akainu manipulates lava using the power of the Mag-Mag Fruit. He uses magma arms and streams of magma to deal overwhelming damage to opponents. Craters created by erupt with volcanic bombs alongside other attacks.