Arc 6Longinus in North Blue
Apophis killed Momonosuke on Zou before clashing with Mihawk, while Longinus began his North Blue assignment and dismantled corrupt Marines and pirate networks. The arc ended with Longinus pursuing Devil Fruit research through Judge and questioning what Justice meant when the Government and royalty concealed Flevance’s deadly disease.
- Apophis defeated and killed Chinjao, wiped out the Eight Treasures Navy, and pursued Momonosuke to Zou, where he killed the Kōzuki heir despite the efforts of Nekomamushi, Kin'emon, Vista, and Raizo.
- Apophis and Mihawk fought on Zou until Kin'emon and the others intervened, prompting Mihawk to end the duel and leave, and news of the battle earned Apophis a five-hundred-million bounty.
- Longinus began his North Blue internship at Branch 666, killed Lieutenant Commander Phil for leaking operations, and used the corrupt Marines’ ties to pirates to launch attacks against pirate crews.
- Longinus exposed Barrels as Sengoku’s undercover agent, agreed to train his son Doli, who chose the name Drake, and killed Crocodile Gustav after defeating the Crocodile Pirates.
- Doflamingo ordered Vergo to destroy the Vinsmoke Family’s North Blue base, while Longinus confronted Judge over the family’s assassination business and survived Judge’s attempt to test his strength with a cannon.
- Longinus killed Captain Kadi when he tried to seize Drake, persuaded Judge to stop selling assassinations and pursue research with Dr. Vegapunk, then asked Gion what Justice should mean when the Government and royalty concealed Flevance’s deadly disease.