Deep in the Underworld, Luffy and Zoro rush to free Loki, but Hajrudin and the Giant Warrior Pirates arrive, their ship plummeting. Before Luffy can react, Zoro slices through Loki’s cuffs, freeing him. A hush falls as Loki rises, towering over Hajrudin. Though weakened by a remaining Seastone cuff, he smirks and summons his massive lightning-infused hammer—Ragnir.

With a mighty swing, Loki unleashes a devastating haki-infused strike. Lightning crashes into the Adam Tree, igniting its upper southern side. Flames spiral upward, consuming Elbaph’s sacred symbol. The Giants watch in horror as Loki laughs triumphantly.

Meanwhile, at Walrus School, chaos erupts. A colossal serpent—Jörmungandr, the snake of world’s end—emerges, mirroring the legends. The faculty, including Principal Kiba, react swiftly. Kiba, a former Giant Warrior Pirate, lands a massive hammer strike on the beast. Saul arrives, delivering a Kimatsu Shiken punch, his haki-infused blow sending shockwaves through the serpent’s hide.

As the battle rages, the children collapse, their worst nightmares coming to life. Fenrir, the massive wolf, emerges with flames licking its fur. Draugr, fire-born revenants, rise from embers, skeletal warriors marching forward. A storm creature crackles with lightning, threatening to further consume the Adam Tree. Níðhöggr, the thunder dragon, breaks free, resembling an ancient Void Century mural.

Then, the most terrifying manifestation appears—a twisted version of Nika, depicted as a grinning, battle-hardened god. Gunko shudders, whispering her deepest fear—Nika.

Watching from the shadows, Kiringham and Sommers smirk. Kiringham’s power has lulled the children into slumber, while Sommers has woven their nightmares into reality. Their plan is unfolding perfectly.

Principal Kiba makes a decisive move. He orders Blade to sound the horn.

The Gjallarhorn is retrieved. A deep, reverberating blast shakes Elbaph. The legendary horn of Heimdallr, the harbinger of Ragnarök, has been blown.

The end of the world has begun.