Arc 17The Moon and the Jade Nebula
The Straw Hat Pirates purified the Cloud Roar Behemoth, found the lunar refuge Endless Vearth, and learned of the Observers and their Purge Protocol. They formed an alliance with Qingyang II’s resistance before reaching Eleusis, where its guardians revealed that their peaceful society hid the Observers’ origins and a possible key to understanding them.
- Allen purified the Cloud Roar Behemoth’s core, severed its link to the crystal tower, and destroyed the Lord of the Dark Abyss’s core consciousness with the crew’s help.
- The Straw Hat Pirates recovered and repaired the Ark Maxim, then used it to cross the storm barrier and follow an ancient star chart toward the moon.
- At Endless Vearth, Laisesu revealed the Observers’ plans, entrusted Allen and Robin with the Star Core’s knowledge, and urged the crew to unite resistance groups.
- Allen and the crew triggered the Moonfall command, destroying Endless Vearth and the Purge Protocol fleet’s vanguard before setting course for the Jade Nebula.
- The Straw Hat Pirates helped Chief Ogen and Qingyang II’s free peoples defeat the Crystal Husk Empire’s forces, then formed the Qingyang Free Peoples Alliance and destroyed the Eye of Qingyang.
- After departing Qingyang II, Robin and Allen discovered that the Crystal Husk Empire served the Sovereign Will and that the Purge Protocol had marked the Eleusis Star Cluster as a high-risk quarantine zone.
- In Eleusis, Oriharu told the Straw Hat Pirates that the guardians had sacrificed evolution and strong emotions to evade the Purge Protocol, and that they guarded the Observers’ origins and a possible key to understanding them.