Fujimaru and company are dumbfounded by Gilgamesh's sudden visitation of the Chaldean Embassy. There, they are given a new request from the king which is to investigate the Persian Gulf. Merlin and Ana cannot join as they have no travel permits. In other words, this will be Fujimaru's first journey alone with Mash in a while. But there sat the noble king, reciting a poem and cocking his head in contemplation. Having fun with tales of the past, Fujimaru and company's journey will finally become a lively one.

Fujimaru and entourage, in order to rescue the people left behind in the fortress city of Nippur after communications were severed, begin their battle against the fake Enkidu who had been awaiting them. With Fou's help, they were somehow managing to keep things even, but in the midst of battle, the Goddess of the Demonic Beasts finally appears. Even Merlin is at his wit's end facing her overwhelming power. Meanwhile, Ushiwakamaru and Leonidas I engage in a spectacular battle, standing up defiant against the Goddess of the Demonic Beasts. In order to break through the situation where it is hard to deliver a wounding blow, the two Servants unleash their Noble Phantasms with desperate resolve.

Fujimaru, Mash and the goddesses enjoy one last moment of peace on the eve of the final battle. That same night, Kingu reaches the peak of the ziggurat. So badly injured that he can no longer stand, he looks up to see a figure looming over him... As morning dawns, King Gilgamesh gives Fujimaru and his companions some final words of encouragement. Their attack on Tiamat begins now!