Gilgamesh assigns Fujimaru his next mission: travel to Eridu to attain the Axe of Marduk, a Divine Tool that can be used against Gorgon. They also have to look out for another stunningly-designed goddess Quetzalcoatl, who shows up unannounced by blasting right through the city gate and killing 100 people. She flirts with Fujimaru but its beyond any of his amassed servants, and in her true form potentially more dangerous than Gorgon. It’s more of a meet-and-greet than a battle, but it doesn’t change Fujimaru’s mission.
Instead, he has an additional objective: defeat Quetzalcoatl. To do so they must travel to her temple, believed to be just south of Eridu, and destroy the symbol that gives her superior divinity. That will even the odds. That means trudging through the jungle, the first night of which is another opportunity for Ishtar to warm up to Fujimaru, even using his name and calling them friends. She also momentarily changes form when she sneezes, but I’m not sure what that’s about.
FGO’s designated comic relief reappears in Jaguarman, after they witnessed her collecting the corpses of the Urukers killed by Quetzalcoatl; as a secondary Divine Spirit Jaggy is apparently bound to serve the big Q. She’s also no match for Ishtar, and when Fujimaru turns on the charm, she agrees to join his party as an additional ally, almost too easily. They then learn the corpses were actually reborn by Q but detained to be used as sacrifices. The episode closes with the party arriving at Q’s temple, with her looking ready to fight.