Solution

"IT WAS TOO EASY TO FIX!"

Yes, I didn't hear it wrongly. She mentioned that crystal clear. I mean... I can't even trust her after the fatal bug earlier that almost killed me. 

Then, I'm ignoring her and asking the empress once again as I asked,

"Can you tell me further information about the goddess Corona? I know that Corona means a crown, but what had happened back then? Why those girls were fighting as in the different point of views? I can't figure that out since she never told me."

Hearing my statement, her expression darkened.

"Kuso..."

The girl said that with a gloomy expression. The expression that nobody would want to expect. Not even her own past who will expect that which led Reili to knock down the past Albedo quickly as she was caught off guard when the current Albedo had gone grim.

How dare you to defy my will to you, Kuso!