Ritsuka and his Servants attack Tiamat directly, and Isthar is seemingly able to destroy her with her ultimate attack. However, Tiamat then reveals her true, gargantuan form. Realizing they have no way to fight Tiamat, Ritsuka and his servants retreat back to Uruk. Meanwhile, the black mud overflows onto the shore and is only held back by Uruk's defenses. Upon returning to Uruk, Ritsuka is dismayed to find out that the black mud has wiped out all of the surrounding cities, leaving only 500 survivors within Uruk. Furthermore, Roman points out that since Tiamat is the primordial goddess that gave birth to all life on Earth, she has no concept of death and cannot be killed as long as life on Earth still exists...