The battle against the raging Water God Dragon Mercuphobia reaches a crisis point when Natsu is sucked into a vortex within the above-ground ocean, only to be saved by a dragon hand.
Mercuphobia targets the harbor with a destructive water-based attack, to Fairy Tail Mages’ dismay and Natsu’s anger. Carried by Happy, the dragon slayer confronts the Water God Dragon with his dragon roar, but the attack is quickly extinguished by Mercuphobia, and the two are caught in the latter’s wave. The rest of Team Natsu make their own attempts to deal damage to the dragon, but to no avail. Natsu manages to jump onto Mercuphobia, expressing reluctance at having to battle the Water God Dragon while also vowing to slay him. However, Mercuphobia neutralizes his magic and creates a vortex, which then envelopes the dragon slayer as the other Mages look on in terror. At that moment, a dragon hand emerges from the vortex, enclosing Natsu, as a voice declares his refusal to hand the Fairy Tail Mage to Mercuphobia.