A moment ago.
"O' Miracle of the World, Divine Being of Summoning, please use my body as the beacon and grant the beloved being your passage. By my name, Serafina Dialanta, heed my call and come forth to this world, the great being of another world."
She immediately started the summoning ritual the moment she finished drawing the circle. They didn't have a lot of time after hearing a lot of noises outside.
The items merged and formed a humanoid. The moment Anubis saw a pair of wings on the back, he confirmed that the summoning went according to Nathan's plan.
Once the light disappeared, a silver-haired beauty emerged. She was wearing a white-colored war gown that was covered with a breastplate. The skirt was right above the knees, but it was paired with long boots that reached above her knees.
She scanned Sera before lowering her head. "Brunhild will now be fighting alongside you."