Venti had been enjoying his wine when Aether marched right up to him, slammed his palms on the table, and shouted, "Seelies are angels!"
Wine spilt out the cup much to Venti's despair. He turned to Aether angrily when the traveler spoke again, "In Natlan, we learned that Seelies were once called angels!"
"Fascinating," he grumbled. "Now, will you pay for my wine?"
"Don't you see what this means? At first, I thought I was crazy but now it's so clear. If Seelies are angels, then Christianity exists in Teyvat!"
"I've literally never heard of that."
"Oh, I think you have, Venti," he said, "or should I say, 'Jesus of Nazareth!'"
Silence.
"Who?"
"It all makes sense," said Aether. "Jean and Barbara wear cross keychains. The cross is a symbol of the Christian faith but they worship the God Barbatos. That means that either Christianity exists in Teyvat or their God is, in fact, Jesus Christ!"
Aether pulled down a random chart with a thorough evidence board.
"It all makes sense: your obsession with wine—a frequent motif in the Christian faith, the trinity presented by you, Dvalin, and Andrius just like Father, Son, and Holy Spirit; your decision to live like a pauper instead of a king; your followers worship you in a church! You're the Jesus Christ of the Christian faith!"
"What?"
"And if Jean prays to Vanessa at times, then that means they pray to saints, which means Catholicism is the true religion!"
Venti sniffed Aether's breath. He waved to the bartender Charles who came over.
"Did you get his grape juice messed up with someone else's alcoholic beverage?"
"I suppose it's possible," said Charles with embarrassment. "Come on, traveler, let's find you a place to sleep if off."
Charles took Aether by the arm and brought him to a bench. Meanwhile, Venti sat at his table lamenting his lost drink.