You can play as Aether/Xiao/Citlali/Paimon.

Aether, the traveler, is in relationship with Xiao. Today Aether's going to Natlan for daily commission, Xiao's having a fever so he can't come, Paimon's at teapot and taking care of him while Aether's away. But out of protectiveness, Xiao shared Aether's view with him to see what's going on on Aether's side.

As Aether doing his daily commission, he meets Citlali, she greets him...as she look in her eyes, she notice someone, that's not Aether, is staring at her..