[T/L: This doesn't have any connections to the main story.]
Furina and Rina were sleeping soundly in the large bed at the Opera Epiclese when suddenly, someone pulled them into the cosmos.
Strangely, they could move freely through space, and Rina had even gained her own body.
"Other Me, where is this place?"
Furina hid anxiously behind Rina. Although Rina was also a little scared, she resolutely stood in front of Furina so as not to worry her.
Before their eyes was a planet covered in ice and snow.
"Let's go, Furina, let's go down and take a look."
"Okay, Other Me, I'll listen to you."
The twins descended toward the planet's surface. The planet was far colder than they had imagined. Out of necessity, Rina used the power of Hydro to conjure some cold-weather clothes for Furina to wear.
Furina hugged Rina and the two huddled together as they walked through the vast, snowy landscape.
After an unknown amount of time, a city finally appeared before them.
Furina, who was eager to enter, was stopped by Rina.
"Other Me, what's wrong?"
"Shh—didn't you notice the guards in this city? If we get caught, we're finished! Listen to me, we'll sneak in by climbing over."
"Oh, alright..."
With that, the twins arrived at a corner of the city, climbed over the wall, and entered the City of Belobog.
In the Upper City, they saw the astonishing The Everwinter Monument and the dignified Qlipoth Fort. With perfect timing, they enjoyed a magnificent Belobog traditional opera at the The Golden Theater.
They also saw the dutiful Gepard and witnessed groups of Silvermane Guards sent out by the Supreme Guardian, who threw themselves into the fight but never returned.
In the Underworld, they secretly watched the thrilling fighting competitions and saw conflicts between members of the Wildfire, the Trailblazer, miners, and others. They witnessed the darkness of human nature, but also saw the scene of Seele selflessly helping ordinary citizens, realizing the beauty of human nature.
At this moment, Furina posed a question to Rina: "Other Me, why are the names of the people here so similar to those in Gray River? They have Oleg, we have Liego; they have Natasha, we have Yadou; they have Wildfire, we also have Wildfire... Did we imitate them, or did they imitate us?"
'... I don't know. You can go ask them yourself.'
Rina and Furina happily played in Belobog for a day. Although they could sense the catastrophe afflicting this world, they realized they were powerless to help.
Rina left a portion of her elemental power in the mines, hoping to support their fight against the cold wave.
As the day passed, Furina and Rina felt their bodies return to the continent of Teyvat.
After waking up, they realized that what had just happened was nothing more than a dream.
But this experience was far too real... But was it truly a dream?