"Moo——!!!"
Gugalanna let out a miserably agonized roar. The bellow shook heaven and earth, temporarily forcing back Annanu, Enkidu, and Gilgamesh alike, blood spraying from their mouths.
Even restrained to this extent by the Key of Heaven—it could still wield this much power!?
That—bastard!
"Gil, check the situation!"
Annanu wiped the blood from the corner of his mouth and shouted down at Gilgamesh, who was closer to Gugalanna.
Gilgamesh steadied the somewhat swaying Key of Heaven against his chest, gritted his teeth, seized a nearby chain, and braced himself atop Enkidu's Chains of Heaven before looking up.
What he saw only made the salty stench in his mouth stronger.
Gugalanna's skull, which Enkidu and Annanu had bombarded in succession, remained smooth and unblemished—not even a scratch marked it.
Its hardness made all three of them shudder.
"This damn thing is absurdly hard—!"
Enkidu swallowed the blood in his mouth, and another enormous Chain of Heaven appeared beside him.
The three did not know what Gugalanna had been made from, but they knew one thing: those golden bones were far harder than anything they could have imagined, surpassing even the Chains of Heaven and the Key of Heaven.
Annanu had just swung down with all his strength, smashing the enormous sword formed from the Key of Heaven onto Gugalanna's head. Gugalanna's skull had not budged in the slightest, but the Chains of Heaven had shattered directly into fragments that filled the sky, reverting to their previous state.
"At least we hurt it—otherwise this damn thing wouldn't have screamed so miserably just now." Annanu controlled the Key of Heaven as it gathered again and gritted his teeth. "No, we can't keep fighting like this. Even if we win in the end, the price will be too great!"
If they kept hammering and