"Everything has a cause, effect, price and consequence."
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Elisa rushed to outside of the church. Arriving to the outside and look up the sky, she found that there are many birds-like creature, flying above the Cathedral's sky territory.
Those bird-like creature flying while carrying something in their hands. A ball that looks heavy.
When they reach a certain point, or rather just above the cathedral, they drop the ball in their hands.
When the balls are dropped and hit the barrier, they explode. The explosions were the cause of the shaking of the cathedral ground.
First a terrorist attack. After that, three boss monster figures appeared. Then the air strikes that threaten the cathedral. All of that is terrible.
"O Dear Lord. Why all of this happened in the Holy Night?"
Elisa is scared, but she can't allow herself to fall into fear when her house is attacked by criminals.