Arc 24Fleet Admiral and the Living Base
Longinus defeated Akainu and became Fleet Admiral, then faced political maneuvering, a renewed pursuit of the Revolutionary Army, and Vegapunk’s living science base. On Fish-Man Island, his arrival unsettled pirates and threatened to expose the Revolutionary Army’s hidden base as Luffy reunited with a memory-lost Sabo.
- Longinus and Akainu fought for three days on Thunder God Island, and Longinus won the Fleet Admiral post while Akainu left to form the New Marines.
- Longinus strengthened Marine Headquarters and prepared to fight the Revolutionary Army, while Akainu pursued Blackbeard and Dragon divided his forces among three destinations.
- Dragon and Longinus fought until a monster attacked the Devil Triangle Sea Area, forcing them and the Marines to investigate the living Undersea Science Base.
- Longinus rescued trapped Marines and Revolutionary Army fighters from the base, then joined them in destroying its body and securing its surviving consciousness fragments.
- The Five Elders pressed Longinus over his dealings with the Revolutionary Army and accepted the Core Fragment for research into Mechanical Reincarnation, while ordering Vegapunk captured.
- Longinus arrived at Fish-Man Island for Princess Shirahoshi’s coming-of-age ceremony, causing pirates to flee and the Straw Hat Pirates to reconsider their search for Jinbe.
- Sabo struck Luffy when he approached, then said he did not know him, and Koala explained that Sabo had lost his memory.