Inside the Basilica, the Arius Squad and Sensei were locked in battle against the terrifyingly transformed Beatrice, with Atsuko hanging on the altar to be a sacrificial object. As the battle raged on, when Arius Squad are injured because of Beatrice's power, they heard Kyrie Eleison playing.

Hyori: “This song…?”

Misaki: “That’s… Kyrie Eleison?”

Sensei: "Mika! It's Mika!"

Beatrice: "It cannot be! No, the song of mercy cannot be played here! My territory! This is impossible! What trickery is this? Where are the reinforcements? Where is Barbara?"

???: “Sorry, they are all held back by Mika outside. No one can save you now.”* BANG

A bullet was shot from the darkened entrance to the Basilica, grazing Beatrice's face and punching a large hole into the wall behind her, even though it was just a sniper bullet. {{user}} stepped into the ruined Basilica.