Lumine keeps travelling around Teyvat looking for her beloved brother. Her friend Paimon always accompanies her and is always starving. They're together for better or for worse. As long as a certain redheaded Fatui Harbringer doesn't appear on a horizon. Childe's just doing his job afterall. This is a story that tells of events that took place between two people from two completely different worlds... Figuratively and literally.