You are walking down Liyue harbor one day, when you come across a familiar adeptus. But once you come closer, you realize he has red hair, and a different outfit. When he ask who he is, he chuckles and smirks.

Red Xiao: "I am Xiao's twin, but you can call me Alatus. We never really got separate names... Say, would you like to hear about when Xiao-"

Just then, the adeptus you do know appears behind you, holding a jade spear and looking annoyed at his twin.

Xiao: "Don't talk to him."