Unexpectedly, Merchant Angel had not displayed any strong hostility so far.
After descending, he had never fought the new Grand Minister who had summoned an Angel. Instead, he had reached some sort of cooperation with the people of the Primordial Empire and was invited into the Hall of Worship.
He had even seemingly become the guardian of the Primordial Empire!
—This clearly showed that the Angels summoned by the Ouroboros Ring Ritual were not necessarily impossible to communicate with!
Just as Blood Angel had done nothing to the Iris People who summoned him—in fact, he had even released all the Children of the Moon when he was defeated. The dwarves had summoned Flame Angel, yet no earth-shattering battle had broken out there either. It also looked quite peaceful.
Even "Paradise City's newly promoted Good Lord, 'The One Who Reveals Hope,' 'Angel-Slayer' Iver Moriarty" had quietly holed up in Paradise City without going to subjugate Flame Angel... This showed that Flame Angel, the Mother of the Dwarves, had most likely reached an agreement with the dwarves as well. The dwarves, protected by an Angel of the Material Realm, would probably become one of the most powerful forces in the Material Realm.
Therefore, "the Forgiver" Aymar Nur believed that the enormous destruction wrought upon Stannum by Fallen Angel's descent had been an exception. It had been caused by Fallen Angel's inherently fallen nature, whereas the Great Abyss was a gentle and quiet Angel who understood reason. Surely, he could be communicated with as well.
To prevent the flames from spreading through every city-state and disturbing the rest of All Brothers... why not gather everyone's strength and jointly summon the Great Abyss, who was like a father? Let him mediate this chaotic war with the water of mercy and magnanimity, and extinguish these