"I am Oulu. I will use my cold power to remove the gods."
"I am the Ice Fortress. I will continue to grow. It is what I was meant to do."
"I have awaken. My body of ice has grown colder. I am that which destroys all."
A freezing weapon created by the gods to seal away a disastrous fiery beast. After having released the disastrous beast, the Ice Tower shut down for repairs, at which time the gods considered using it once again in the fight against the humans. However, upon being restarted it had been reprogrammed by the Rebel Angel to view the gods as enemies. After eventually evolving into the Ice Fortress, it intervened many times in the gods' invasion, and came to be known as the fortress of humanity's hope.